Homework Statement
A luggage handler pulls a suitcase of mass 17.1 kg up a ramp inclined at an angle 24.0 above the horizontal by a force of magnitude 146 N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is 0.257. The suitcase travels a...
Homework Statement
A block of mass m1 is placed on a wedge of mass m2. If the wedge is held at rest, it is observed that the block will automatically slide down the incline from rest. The coefficients of kinetic and static frictions between the block and the wedge are the same as those between...
Homework Statement
A 20.0kg block is placed onto a 30.0°ramp with a coefficient of static friction of0.850. Will the block slide down the ramp?
a) - if the block slides down the ramp, what is the minimum applied force needed to keep the block stationary?
- if...
Homework Statement
A loaded penguin sled weighing 80N rests on an inclined plane 20 degrees to the horizontal. Between the sled and the plane, the coefficient of static friction is .25, and the coefficient of kinetic friction is .15.
Homework Equations
(a) What is the least...
I know this has been asked before, but it was never really clearly explained.. The problem is as follows:
Homework Statement
What is the acceleration of the system shown in the diagram if the kinetic coefficient of friction is 0.15?
[diagram attached.. if not visible, it is an incline plane...
Homework Statement
The data in my lab suggests that the mass of the block, M, does not have an effect on the inclination of the plane needed to have the block slide down with uniform velcoity.
But its asking why this is so? And I do not know why! Someone please help me ASAP.
Also, it...
1. You are pushing a box of mass 18kg with a force of 239 N at 34.7 degrees below the horizontal. The box is on an inclined plane at angle 15 degrees above the horizontal. What is the acceleration of the box up the ramp?
2. F=ma
Fpush-Fgx = ma
The Attempt at a Solution
Fgx =...
Homework Statement
A brick is projected up an inclined plane with an initial speed v0.
If the inclination of the plane is 30 degrees and the coefficient of sliding friction μ = 0.1, find the total time for the block to return to its original position.Homework Equations
The Attempt at a...
Good afternoon,
a mass m slides on a frictionless surface of an inclined plane of angle x. The mass of this plane is M. The plane can slide on the horizontal surface.
I look for equations of motion for the mass m and the inclined plane.
I started by finding that, if the inclined plane...
Homework Statement
A box is placed on an inclined plane of angle \theta. There is no fiction between the box and the plane nor between the inclined plane and the floor. The mass of the box is m_1 and the mass of the inclined plane is m_2 .
Find the acceleration of the box and that of...
Homework Statement
An object of mass 13 kg is placed on incline with friction. Incline is originally horizontal and then raised slowly and at 22 degrees, mass begins to slide down incline. It is found that coefficient of kinetic friction is .83 times coefficient of static friction. If incline...
Homework Statement
here i am going to sort out fresh and hard boil egg. i suggested that used incline plane. It is expected that the boil egg will pass through the second positive gradient incline while the fresh egg are not.
Homework Equations
so my question is, what the equation involve...
Homework Statement
"A 60kg boy rides down an icy hill of 19º slope while standing on a 2.6kg flat-bottomed bathroom scale. Assume there is no frictional force between the bottom of the scale and the hill. The static friction force the scale exerts on the boy is ____.
Homework Equations...
Homework Statement
A block of mass m accelerates with acceleration g up a frictionless plane that is inclined at
an angle α above the horizontal. The force Fo that pushes the block is at an angle β above
the horizontal. Find the force Fo.
1. mg(1 + sin β)/cos(α + β)
2. mg(1 + sin...
Homework Statement
A uniform solid sphere,rolls without slipping on a horizontal surface with an angular velocity \omega,meets a rough inclined plane of incination 60(degrees).The sphere starts pure rolling up the plane with an angular velocity.Find the new angular velocity .
Homework...
Homework Statement
A body falling from rest from given height H hits an inclined plane in its path at height. As a result of this impact the direction of velocity of the body becomes horizontal. For what value of h/H will body take max time to reach the ground?
ANS) h/H = 1/2
Homework...
Homework Statement
An 18kg cart is connected to a 12kg hanging block at the bottom of the incline (ignore friction)
What is the magnitude of acceleration of the cart?
Homework Equations
F=ma
Fx=Fgsinx
Fy=FgCosx
The Attempt at a Solution
well without the hanging...
Homework Statement
A 20-kg package is at rest on an incline when a force P is applied to it. Determine the magnitude of P if 10s is required for the package to travel 5m up the incline. The static and kinetic coefficients of friction between the package and the incline are both equal to 0.3...
Homework Statement
A 2.0 kg block rests on a frictionless wedge that has a 60 deg incline and an acceleration \vec{a} to the right such that the mass remains stationary relative to the wedge. a) Draw the free-body diagram of the block and use it to determine the magnitude of the...
Homework Statement
In anticipation of a long 7° upgrade, a bus driver accelerates at a constant rate of 3ft/s2 while still on a level section of the highway. Knowing that the speed of the bus is 60mi/h as it begins to climb the grade and that the driver does not change the setting of his...
I'm having problems of calculating the acceleration and velocity of a cart traveling down an inclined plane. I also need help calculating Sin theta. I've used 2 formulas to try calculating the acceleration and i get different answers. the first formula is a=2s/t2(squared), the 2nd formula was...
Homework Statement
A block is given an initial speed of 3.0m/s up a 22 degree plane.
a.) How far up the plane will it go?
b.) How much time elapses before it returns to the starting point?
no friction btw
Homework Equations
Assuming that...
Homework Statement
So I have this standard problem of a cylinder rolling down an inclined plane, however, this time the plane itself is free to slide on the ground. I need to find the acceleration of that cylinder relative to the plane.
2. The attempt at a solution...
Homework Statement
Figure 5-60 shows a box of dirty money (mass m1 = 2.7 kg) on a frictionless plane inclined at angle θ1 = 28°. The box is connected via a cord of negligible mass to a box of laundered money (mass m2 = 2.4 kg) on a frictionless plane inclined at angle θ2 = 64°. The pulley is...
Homework Statement
I have a beam on an incline at angle θ. It is uniformly loaded with "W", which represents the self-weight of the beam. Reactions occur at each end. The beam is simply supported. The scenario is drawn out below:
The Attempt at a Solution
This problem seems so...
I just have a quick question. I know that at least some amount of friction is required in order for a ball to roll down an inclined plane and not just slide. My question is about the work done by friction in this situation. Is all of this energy converted to rotational kinetic energy or is there...
Homework Statement
(Figure attached to post)
A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k, compressing the spring a distance x. After it is released, the box slides up a frictionless incline as shown in Fig. 7.5 and eventually stops. If we...
Homework Statement
A Glass of water is freely sliding down an inclined plane. The water surface has settled down after some initial disturbances. Which of the three cases is possible for the shape of the water surface:
1) It will remain parallel to the incline
2) The water surface will rise...
First time post, so sorry if this is in the wrong section. I've been working my way through Morris Kline's "Calculus" this summer to get ready for college next year, and I have hit a bump on a problem involving an inclined plane. In this problem the question is as follows: "An object slides down...
Homework Statement
An Object with a mass of 10.0kg is at rest at the top of a frictionless inclined plane of length 8.00m and an angle of inclination 30.0 with the horizontal. The object is released from this position and it stops at a distance d from the bottom of the inclined plane along a...
Hello. Can someone help me with this problem please?
An inclined plane of angle theta = 20.0 has a spring of force constant k=500 N/M fastened securely at the bottom so that the spring is parallel to the surface as shown in figure P7.63. A block of mass m = 2.50 kg is placed on the plane at a...
Homework Statement
Assume you are on a planet simillar to Earth where the acceleration due to gravity is 10 m/s2. A block of mass 15 kg lies on an incline plane. The height of the incline in 9m and the width is 12m. The coefficient of kinetic friction is .5. The magnitude of the force...
During revision for an exam I have tomorrow I came across a question that left me confused, and I wasn't entirely satisfied with my teacher's explanation today. I'm worried something of the sort may come up in the exam and I won't be entirely certain how to deal with it.
We have a plane...
Homework Statement
So rigid body (ring, cylinder, sphere), who's radius of gyration is known, rolls down an inclined plane without slipping. Find velocity as a function of height.
m - mass of the body. y0 - initial height, g - gravitational acceleration, v - speed. I - moment of inertia, K -...
Homework Statement
A particle with mass m slides down from rest on a smooth plane inclined at an angle of theta with the horizontal . The particle, besides subjected to gravity experiences a resistive force of magnitude mkv ,with v as its velocity at time t and k as a positive constant. Show...
acceleration of the inclined plane ?
Homework Statement
A block of mass m is placed on an inclined plane. the angle of inclination is θ. now i want to understand in which direction (horizontal) the plane should be accelerated so that the block on it doesn't move.
Homework Equations...
The owner of a warehouse ask an engineer to design a ramp which will reduce the force necessary to lift boxes to the top of a 1/2 m step. If there is only room enough for a 4 m ramp, what is the maximum factor by which the lifting force could be reduced?
I am not sure how to find the...
Consider the classical physics problem of a cube sitting atop a frictionless inclined plane. Of course, this cube will accelerate down the plane with acceleration dictated by F = mgsin(theta), where theta is the angle between the inclined plane and the horizontal surface.
Easy enough.
Now...
Homework Statement
A hollow cylinder with a mass of 1.2 kilograms and a diameter of .25 m rolls down an inclined plane angled at 35 degrees. What is its translational velocity at the bottom of the incline plane if the distance traveled is 3 meters?Homework Equations
v=\sqrt{gh}
?
The Attempt...
Homework Statement
List 2 major factors result in an efficiency of less than 100% when using an inclined plane to raise a mass
Note - this is a grade 11 lab so don't have answers that are too advanced please :DHomework Equations
eff = eout/ein x 100%
... = mghf/fd x 100%The Attempt at a...
Homework Statement
A block with mass m = 5.00 kg slides down a surface inclined 36.9 to the horizontal. The coefficient of kinetic friction is 0.25. A string attached to the block is wrapped around a flywheel has mass 25.0 kg and moment of inertia 0.500 kgm2 with respect to the axis of...
Homework Statement
How do you find the effort force of pulling a cart up a ramp with no friction and you know that the weight of the cart is 7.6734 N?
Homework Equations
W=F\DeltaXcos\theta
Efficiency=(work output / work input) x 100
The Attempt at a Solution
My main goal is to...
I've seen a number of posts on the following question, but don't believe any contain a solution to the following very simple scenario:
A sphere of radius r and mass m rolls down a plane inclined at theta degrees. What are its linear and angular velocities at any time t thereafter, assuming it...
Block of mass M between two strings on incline?
A block of mass M rests on a frictionless inclined plane of angle θ as shown in the diagram below. Two springs of equal length are connected to the block and to two posts as shown. The separation between the posts is equal to the sum of relaxed...
Homework Statement
A box weighing 20 kg is on an inclined plane with an angle of 30\circ.The coefficient of friction is 0.3. What is the acceleration of the box?Homework Equations
Newton's Second law ( I think? )
g= 10 m/s2
The Attempt at a Solution\sumy = 0
NF - Wysin30\circ = 0
NF...
Homework Statement
Block 1 of mass m1=2.0kg and block 2 of mass m2=3.0kg are connected by a string of negligible mass and are initially held in place. Block 2 is on a frictionless surface tilted at theta = 30 degrees. The coefficient of kinetic friction between block 1 and the horizontal...
Homework Statement
An inclined plane at 30.0° is 4.9 m long. A book which has a coefficient of kinetic friction with the inclined plane of 0.16 is placed at the top and immediately begins to slide. How long will it take for the book to reach the bottom of the incline?
Homework Equations...
I'm working on a problem in which a block sits on an inclined plane of angle @ above the horizontal. Assuming there is no friction, the block will slide down the plane with a force of mg*sin(@). The trouble I'm having is figuring out the horizontal and vertical components of that force...
Homework Statement
a constant force Fa of magnitude 85.0 N is applied to a 4.0 kg shoe box at angle φ = 53.0°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by Fa when the box has moved through vertical distance h = 0.45 m?
heres the...
A friend asked me how to solve this problem:
There is a trolley of mass M_{o}kg on a fixed inclined plane, whose angle of inclination is \theta. The block is at a height Hmetres, at the top of the inclined plane. Coefficient of friction is \mu. It is also known that it is raining, and the...