Max height Definition and 124 Threads

Homework Statement Given a isosceles triangle with base 1.32 meters and other sides unknown; Given rectangle with base 1.32 meters. These polygons are on an incline of 24 degrees. What are the maximum height of the rectangle and the maximum side lengths of the triangle (not the base) without...

A projectile is fired from 35ft above the ground level at an angle 35 deg. It hits the ground 100 ft away (horizontal distance). Find initial speed, travel time and max hight above the ground. can somebody solve this or point me in the right direction, thank you!

A .050-kg ball is shot at a velocity of 12 m/s by an upward-slanting cannon. At its maximun height, the kinetic energy of thew ball is 24J. a) Tha max. height is? b) the angel of the cannon to the horizontal is? I really don't know where to start on this question. If someone can...

Homework Statement A man stands on the roof of a building of height 14.1 m and throws a rock with a velocity of magnitude 31.6 m/s at an angle of 25.0 above the horizontal. You can ignore air resistance. Calculate the maximum height above the roof reached by the rock. Calculate the magnitude...

A projectile of mass 20.2 kg is fired at an angle of 65.0 above the horizontal and with a speed of 84.0 m/s. At the highest point of its trajectory the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial speed. You can ignore air resistance...

Homework Statement Estimate the maximum height reached by a baseball during its flight if it is thrown with a velocity of 81 feet per second at an angle of 75 degrees relative to level ground. The Attempt at a Solution I found an answer, but I don't know if I did it right so I guess I'm...

A ball is launched as a projectile with initial speed v at an angle theta above the horizontal. Using conservation of energy, find the maximum height h_max of the ball's flight. Express your answer in terms of v, g, and theta. My energy equation is as follows: 0.5m(v^2)cos(theta)...

Homework Statement A projectile is fired with an initial speed of 65.2 m/s at an anmgle of 34.4 degrees above the horizontal on a long flat firing range. Determine the max heigh reached by the prkectile, the total time in the air and the total horizontal distance covered and the velocity of...

my teacher gave me this q: a snowball if thrown into the air. The function h= -4.9t^2 + 20t + 1.8 expresses the relationship between height, h, in meters and time, t, in seconds. a) algebraically determine the max height the snowball reaches b) how long is the snowball in the air? i know...

Homework Statement A person wants to push a lamp(mass 9.6 kg) across the floor a) Assuming the person pushes at a height of 60 cm above the ground and the coefficient of friction is 0.20, determine whether the lamp will slide or tip over b) Calculate the maximum height above the floor at which...

Homework Statement Figure P9.81 shows a water tank with a valve at the bottom. If this valve is opened, what is the maximum height attained by the water stream coming out of the right side of the tank? Assume that h = 8.0 m, L = 1.50 m, and = 30° and that the cross-sectional area at A is very...

Good morning, I am trying to set up the following problem: A golfer hits a golf ball at an angle of 25.0 degrees to the ground. If the golf ball covers a horizontal distance of 301.5 m, what is the ball's maximum height? (Hint: At the top of its flight, the ball's vertical...

"golf ball problem" (velocity, max height, hang time) Okay. I'm having a really hard time with this. I know how to start the problem, but after that I go nuts, and literally start pulling out my hair. There is no book I can look in for reference, as this part is teacher supplemented. The...

Two blocks are free to slide along a frictionless wooden track. A block of mass m1=5 kg is released from point A. Protruding from its front end is the north pole of a strong magnet, repelling the north pole of an identical magnet embedded in the back end of the block of mass m2=10 kg, initially...

I am having a lot of difficulty with this problem: Consider a frictionless track as shown in Figure P6.48. A block of mass m1 = 4.20 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 10.5 kg that is initially at rest. Calculate the maximum height to...

Hey there, I have been studying for my physics final coming up and I am constantly getting stuck on the stuff that we started at the beggining of the year. Such as this question: A 6 kg object is projected directly upwards with an initial speed of 15 m/s. This object experiences an average...

maximum height?? 1) A ball is thrown vertically upward and is caught by the thrower after 2.00s. find a) initial velocity b) the maximum height it reaches? a) initial velocity obviously = o, but i have no idea how to find max. height? 2) the driver of a 600kg sports car, heading directly...

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

A model rocket is launched straight upward with an initial speed of 45.6 m/s. It accelerates with a constant upward acceleration of 1.5 m/s^2 until its engines stop at an altitude of 180.5 m. What is the maximum height reached by the rocket? Answer in units of m. How long after lift-off does...

A ball is thrown straigh up, from height of 25 m above the ground, at a speed of 11 m/s. The first question is what is the max. height of the ball above the ground. I got that one it's like 31m. But there was another question after that that asks how long is the ball in the air. What...

I need some help w/ this problem, u don't have to give me the whole thing maybe just the correct formulas for it. All your help is appreciated! Thanks! If an object is fired up at a speed of 3.000 m/s at t= 0.0000s and reaches its max. height at time t. What is the velocity at the max...

Could someone help me set up this problem and give some helpful hints. From what maxium height can a 75-kg person jump without breaking the lower leg bone on either leg? Ignore air resistance and assume the CM of the person moves a distance of .60m from standing to the seated position (that...

I'm trying to find max height of a projectile and I only know the angle of projection and the time it is in the air. No clue where to start working this problem...don't I need initial velocity to start?

Hey, I'm having a problem determining the angle necessary for the range of a projectile to equal the max height given the velocity of the projectile. (the velocity is 53.1m/s) I'd imagine it's necessary to set the equation for max height equal to the range? Either way, I'm dumbfounded on...