Okay, I got another problem for you guys that I have been trying to figure out. Here first is the diagram:
I have been experimenting with different weights of balls and different weights of cars, also different ramp lengths. 5 balls are supposed to be used. Nothing seems to work at...
a 1360.7 kg car has an engine which can deliver 59,680 watts to the rear wheels. what is the max. velocity at which the car can climb a 15-degree hill?
i have no idea how to solve this. immediate help would be GREATLY appreciated!
the work i have done was setting up a triangle with the...
Imagina an incline plane of angle @. A rod of length L, is at rest( becasuse you are holding it) at the very top of the incline. A magnatice field is pointing up in your mental picture. Find the velocity v of the rod as a function of time once your let go of the rod. Two things in the problem...
Two blocks with masses 4.0kg and 8.0 kg are connected by a string and slide down a 30 degree inclined plane. The coefficient of kinetic friction between the 4.0 kg block and the plane is 0.25; that between the 8.0 kg block and the plane is 0.35
a) calculate the acceleration of each block...
Ok I just can't see this questions I don't want an answer I just whant an explation on how to do it. if you can respond today it would be great thanks! an simple drawing like I did would be great thanks!
a block weighing 100 Newtons is positioned on a incline that makes an angle of 30 degrees...
Ive been working on this problem for a little while now and basically, I don't know where to go. I have found the friction angle of 7 degrees but I really have no idea where to go next. My book doesn't have any examples like the problem. The problem looks a lot like a basic physics problem so I...
Knowing that the incline plane has an angle of 30 degrees and the coefficient of friction between a 60 lb block and the incline is 0.25, determine the smallest force P for which motion of the block up the incline is impending and the corresponding angle the force makes with the incline plane...
The Flintstones and Rubbles decide to try out the new inclined bowling alley, ``Bedslant Bowling''. Fred's ball and Barney's ball have the same size, but Barney's ball is hollow. Betty's ball and Wilma's ball are scaled down versions of Fred's ball and Barney's ball respectively. They all place...
Body B weighs 440 N and body A weighs 140N. The coefficients of friction between B and the incline are Us = 0.56 and Uk = 0.25.
a) Find the acceleration of the system if B is initially at rest
b) Find the acceleration of the system if B is moving up the incline
c) Find the acceleration of...
Question
A 20.0 kg package is released on a 50 ^\circ incline, 4.50 m from a long spring with force constant 150 N/m that is attached at the bottom of the incline. The block hits the spring, compresses the spring, and finally bounds back. The coefficient of kinetic friction between the package...
a 1kg box on a 30degree frictionless incline is connected to a 3kg box on a horizontal frictionless surface. The pulley is frictionless and massless.
A)if the magnitude of F is 2.3N what is the tension in the connecting cord?
I found all of my formulas
M1 "X" direction-----T-M1g = M1a...
A 300 kg piano slides 4.6 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.
(a) Calculate the force exerted by the man.
i got F = mu(k)mgcos(angle) + mgsin(angle) = 0
so F =...
Two blocks (with masses 10.1 kg and 65 kg) are connected by a string. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between the block and machine is 0.299. The acceleration of gravity is 9.8 m/s^2.
Find the change in the kinetic energy of the block on...
Hi, could someone please help me? Here is the problem:
"A 265 kg piano slides 4.6 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). The effective coefficient of kinetic friction is 0.40.
(a) Calculate the force...
I've been trying everything to solve this problem: It says:
A block of mass m = 2.00 kg situated on a rough incline at an angle of = 37.0° is connected to a spring of negligible mass having a spring constant of 100 N/m. The pulley is frictionelss. The block is released from rest when the...
This is the question I was given a homework assignment:
2) Two objects are connected by a light string that passes over a frictionless pulley. Draw a Free Body Diagram of both objects. If the inclide is frictionless and if m1= 2kg, m2=6kg and angle theta=55 degrees, find:
(a) the...
This is the question I was given a homework assignment:
2) Two objects are connected by a light string that passes over a frictionless pulley. Draw a Free Body Diagram of both objects. If the inclide is frictionless and if m1= 2kg, m2=6kg and angle theta=55 degrees, find:
(a) the...
A 0.64 kg bundle starts up a 10.08° incline with 61.7 J of kinetic energy. How far will it slide up the plane if the coefficient of friction is 0.373?
I found the frictional force and the force of gravity working against the bundle by f = N*u and F = ma to be 3.6026 and 1.09886. I added...
A 12kg block is released from rest on an inclined plane with angle 35. Acceleration of the block is 1.23457 The acceleration of gravity is 9.8m/2^2.
What is the coefficient of kinetic friction for the incline?
I found the normal force (12*9.8*cos35)=96.33228...
Wondering if someone could help me with my last set problem? I've been looking at it for quite some time now. The incoming force on the block is confusing me...as a result, I'm not sure how to set it up. I've worked it with the force parallel to the incline as well as perpendicular - but not as...
kayyy these are some hwk questions i don't understand. please help :cry:
1. A person has a choice of either pushing or pulling a sled at a constant velocity. Friction is present. If the angle beta is the same in both cases, does it require less force to push or pull? explain.
I believe...
A block of mass m is placed in a smooth-bored spring gun at the bottom of the incline so that it compresses the spring by an amount x_c. The spring has spring constant k. The incline makes an angle theta with the horizontal and the coefficient of kinetic friction between the block and the...
Hi. Got this quite interesting problem:
A projectile is launched at some velocity at an angle a over a plane inclined at an angle b.
1. How far, measured along the incline, will the projectile fly?
2. What angle a will give the longest distance?
Any suggestions/hints on possible...
A 36 kg block of ice slides down a frictionless incline 1.2 m long and 0.48 m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.
(a) Find the magnitude of the force exerted by the worker.
(b) Find the work done on the block by...
I don't know a lot about physics so please excuse me. Let's say you have a marble rolling down a frictionless plane of an incline θ degrees from the horizontal. It begins at a height ho with an initial velocity of 0. I want to find the velocity of the marble at any height along the way. What...
The problem is:
two identical blocks tied together with a string which passes over a pulley at the crest of the inclined planes, one of which makes an angle q1 = 18° to the horizontal, the other makes the complementary angle q2 = 72°.
If there is no friction anywhere, with what...
1) A thin hoop of radius r = 0.13 m and mass M = 8.1 kg rolls without slipping across a horizontal floor with a velocity v = 4.0 m/s. It then rolls up an incline with an angle of inclination theta = 33o. What is the maximum height h reached by the hoop before rolling back down the incline?
2)...
Jill has just gotten out of her car in the grocery store parking lot. The parking lot is on a hill and is tilted 3 degrees. Fifty meters downhill from Jill, a little old lady let's go of a fully loaded shopping cart. The cart, with frictionless wheels, starts to roll straight downhill. Jill...
I need help here! Please!
Hola! I'm in desperate need for help, so por favor senor/ita!
A 2kg block situated on a rough incline (angle of elevation is equal to 37) is connected to a spring of negligible mass having a spring constant of 100N/m. The pulley is frictionless. The block is released...
A 6 kg box slides down a long, frictionless
incline of angle 34 degrees. It starts from rest at time
t = 0 at the top of the incline at a height 17 m
above the ground. Find the distance the box travels during
the interval 0 < t < 0.6 seconds.
Hi Guys,
For a physics practical investigation I will be investigating the change in height (angle) of an inclined plane and the time taken to travel down the incline.
Now for my hypothesis and results I am a bit stuck. For the hypothesis I will be using the following formula...
Can anyone help me with theses problems?
1. A 500 g cart is released from rest 1.0 m from the bottom of a frictionless, 30 ramp. The cart rolls down the ramp and bounces off a rubber block at the bottom. The figure shows the force during the collision.
After the cart bounces, how far does...
A 2.0 kg package is released on a 53.1◦
incline, 4.0 m from a long spring with force
constant 120 N/m that is attached at the
bottom of the incline. The coefficient of
friction between the package and the incline
are µs=0.40 and µk=0.20. The mass of the
spring is negligible.
a. Show that...
Can someone tell me if I did this right?
An object of mass m is hung from a rope that passes over a pulley at the top of a ramp and is attached to a block of mass M.
(a) Assume m is large enough that the block accelerates up the ramp. Find an expression for the block’s acceleration...
My project's requirement isn't limited to a mousetrap car but that's what I've built. My car has to go up an incline of 5 degrees. I'm aiming for a distance of 14 meters. My car right now can go on a level surface but can barely pass the 1.5 m on the incline!
My dad is helping me with the...
I am having a lot of trouble with this problem:
What is the minimum work needed to push a 1147 kg car 376 m up a 15.1o incline if the effective coefficient of friction is 0.23?
I thought that it was (m)(.23)(sin 15.1)(376) but that isn't right. Any help would be appreciated.
Well, right now I'm working on one helluva a problem... Basically, a projectile is given a velocity of V sub "o" (Vo). The launch angle is gamma degrees above an surfaced which is inclined theta degrees above the horizontal. I'm tasked with finding its range along the inclined surface as well...
Hi,
Just a quick question that I am stuck on. If the mass were increased on a trolley moving downhill, would the acceleration increase?
Since F = Ma...i'd say it would, but just to make sure :P
Thanks
Question is:
A wedge makes an angle theta to the horizontal. it has a mass M2 and can slide along the horizontal. A mass M1 slides along the frictionless surface of the incline. What are the expressions for the acceleration of the wedge and the mass M1?
I am just puzzled. Any suggestions...
Question: Suppose you have measured the time (delta T) required for a glider to travel several distances (delta X) down an inclined plane. After plotting the data points on a graph of delta X vs. (delta T)^2, you find the slope of the best fitting straight line is 15cm/s^2. What is the...
Need Help Here!
A sphere or mass, m and radius r rolls along a horizontal surface with a constant velocity, Vi approaches an incline with (angle theta). ie bottom angle :smile: If it rolls without slipping,
a) what is the maximum distance,x it will travel on the incline?
b) If it begins to...
there's a 3kg mass on a 30 degree frictionless incline. The mass travels d distance and hits a spring with k=400N/m. The spring contracts 0.2 m and brings the block to a stop.
I need to find the distance the block traveled.
F=kx
F=400*.2
F=80N
so the block has to hit with 80N.
what...
This is just a question I made up because there'll probably be one like this on our final exam.
A 5 kg block is on an incline plane of 50 degrees. coeffecient of friction is 0.5. Will it slide?
N = mg cos(50)
N = 31.529
friction = mu * N
friction = 15.764
force down = ma
f =m g...
You have a block on the incline plane 130 Newtons and it's attached by a rope through a "frictionless" pulley to another block of 45 Newtons hanging of the side of a plane. The question is what angle pheida has to be in order for a 130 Newtons block to start sliding up the plane (not...
I am having real problems understanding friction and how it relates to problems. Right now all I have to work with is a Cal-oriented book, but the class I'm in is taught with just Trig. I am completely lost. Your help would be greatly appreciated.
Starting from rest, a 4.33 kg block slides...
A 26.0 kg box slides 4.0 m down the frictionless ramp shown in the figure, then collides with a spring whose spring constant is 170 N/m.
1-- What is the maximum compression of the spring?
2-- At what compression of the spring does the box have its maximum velocity?
this is killing...
anyone physics experts know how to do this questions?
A force of 25 N parallel to a 35degrees inclined plane pulls a 2.5 kg block 5 m up the plane at
constant speed.
(a) How much work has been done by the 25 N force?
(b) much work has been done by friction?
(c) How much work has been done...
Coin Rolling Up Incline, no mass given!?
1. [SFHS99 8.P.46.] A coin with a diameter of 3.40 cm rolls up a 27.0° inclined plane. The coin starts with an initial angular speed of 55.0 rad/s and rolls in a straight line without slipping. How far does it roll up the inclined plane?
Having some...
A block of mass m = 2.20 kg slides down a 30 degree incline which is 3.6 m high. At the bottom it strikes a block of mass M = 7 kg which is at rest on the horizontal surface. If the collision is elastic and friction can be ignored, determine the:
speeds of the two blocks
and
how far...