Question

Prove that at any given height, the speed of the object while going up will be...

Prove that at any given height, the speed of the object while going up will be the same as while going down (eg right before landing, the object will have the same speed as just after it was released).

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
At a parade, you see a clown riding in his car going to your right. The...
At a parade, you see a clown riding in his car going to your right. The clown is juggling, and tosses a ball of mass 0.25kg up and down. The ball reaches a peak height of 2.5m above the release point. If the ball is caught at the same height it was released at at a horizontal distance of 4.1m from where it was released, what was the speed of the clown car?
An object with a mass of 40.0 kg is fired with an initial speed of 1.28...
An object with a mass of 40.0 kg is fired with an initial speed of 1.28 x 102 m/s at an angle of 30.0° above the horizontal from a 116 m high cliff (take ground level to be y = 0 m). (a) Determine the initial total mechanical energy of the projectile. (b) If when the projectile is at its maximum height of y = 287 m, it is traveling 90.7 m/s, determine the amount of work that has been...
1) Consider an object of mass m1 = 0.425 kg moving with a uniform speed of...
1) Consider an object of mass m1 = 0.425 kg moving with a uniform speed of 6.65 m/s on a frictionless surface. This object makes an elastic head-on collision with another object of mass m2 = 0.555 kg  which is initially at rest. (a) Find the speed of m1 immediately after collision. (b) Find the speed of m2 immediately after collision. 2) An object of mass m1 = 0.395 kg  starts from rest at point  and slides down an incline surface that makes...
1. Ball A was released from the cliff of height H; ball B was released from...
1. Ball A was released from the cliff of height H; ball B was released from the cliff of height 2H. The ratio of velocity of ball B to ball A just before they hit the ground is: A) 2 B) 2 1/2 C) 1 D) sqrt(2) E) 1/sqrt(2) 2. Object is thrown up with some initial velocity. No air resistance is present. We can conclude that: a) Acceleration on the way up is greater than acceleration on the way...
A hoop moves over a surface without slipping. The object rolls up an incline without slipping,...
A hoop moves over a surface without slipping. The object rolls up an incline without slipping, reaches some maximum height before turning around. Now suppose that instead of a hoop, a solid disk  rolls up the incline without slipping. (The disk is not shown in the diagram.) The solid disk reaches the same maximum height as the hoop did before turning around. It is NOT known how the masses or radii of the two objects compare. Before traveling up the incline,...
A ball with a mass of 2.0 kg is dropped from a height of 1.5 m....
A ball with a mass of 2.0 kg is dropped from a height of 1.5 m. The ball hits the floor and bounces back to a height of 1.1 m. Use energy conservation wherever possible to answer these questions. (a) What is the speed of the ball just before it reaches the floor initially? (b) What is the speed of the ball just after it leaves the floor? (c) How much work is done by the floor? (d) The coefficient...
1. A cart of mass 2.0 kg is released off the floor from a distance of...
1. A cart of mass 2.0 kg is released off the floor from a distance of 3.5 m. What is the change in the potential energy of the ball? Show the calculations . 2. Later the same cart is released from rest, and it falls on the floor. What is the kinetic energy of the cart just before it hits the floor? What is its velocity before hitting? Show your calculations. 3. a) Suppose, an object is released in the...
This is the question: After a merry-go-round is set in motion, its rotational speed decreases noticeably...
This is the question: After a merry-go-round is set in motion, its rotational speed decreases noticeably if another person jumps on it. However, if a person riding the merry-go-round steps off, the rotational speed seems not to change at all. Explain. This is the explanation given in the textbook: A person jumping on the merry-go-round right before landing on the carousel had zero rotational velocity. Her landing increases the rotational inertia of the system, thus the rotational speed decreases. A...
Can someone confirm if I am right or not for the questions below? And if I...
Can someone confirm if I am right or not for the questions below? And if I am not, could you please explain why? A sliding block and a rolling disk of equal mass are released from rest from the top of a ramp. They “race” each other down. Let’s figure out which object, if either, is moving faster at the bottom. What’s your initial guess about which object has more speed at the bottom? Explain. I believe they have the...
A 204-kg projectile, fired with a speed of 131 m/sat a 65.0 ∘  angle, breaks into three...
A 204-kg projectile, fired with a speed of 131 m/sat a 65.0 ∘  angle, breaks into three pieces of equal mass at the highest point of its arc (where its velocity is horizontal). Two of the fragments move with the same speed right after the explosion as the entire projectile had just before the explosion; one of these moves vertically downward and the other horizontally. A. Determine the magnitude of the velocity of the third fragment immediately after the explosion. B....