When it is at height h,
potential energy is
kinetic energy is
When it reaches the ground,
potential energy is
kinetic energy is
where v is velocity at the end
Change in Kinetic energy = Change in potential energy
Thus if the height is doubled, then velocity becomes
change in kinetic energy in the first case is,
change in kinetic energy in the second case is,
therefore, change in kinetic energy of the ball will be double that of the original ball.
Question 14 5 pts A basketball is dropped from rest from a height h. If the...
(a) A ball is dropped from rest from an initial height h above the floor. It then bounces several times. Draw graphs the position y(e), velocity v, (e) and acceleration ay () of the ball for two complete bounces (hitting the ground t for py Ct) ay (t) (b) If the ball is released from rest at a height h the ground? 1.50 m above the floor, how fast is the ball moving when it reach (c) If the ball...
2) A ball is dropped from rest at a height H. At height h (below H) the ball bounces off a surface with no loss in speed. The surface is tilted at 45°, so the ball bounces off horizon- tally. Derive an expression for the distance the ball travels in the horizontal direction. Plot the distance traveled in the horizontal direction as a function of h where h varies between 0 and H. Nest dropped from H sorface (6 at...
5. A ball is dropped from rest from the top of a building of height h 100.25 m friction, find (a) How long does it take the ball to hit the ground? (b) What speed (b) What speed does the ball travel the instant before it hits the ground?
A basketball (m = 0.60 kg) is dropped from rest. Just before striking the floor, the ball has a momentum whose magnitude is 2.8 kg·m/s. At what height was the basketball dropped?
A ball is dropped from rest at a height h. Directly below on the ground, a second ball is simultaneously t thrown upwards with a speed of vc. The two balls collide at the moment that the second ball is instantaneously at rest. (They collide when the second ball is at its maximum height.) What is the height of the collision? At what time does the collision occur if both balls' motion stated at t = 0 s?
A
rubber ball with a mass of 0.140 kg is dropped from rest. From what
height (in m) was the ball dropped, if the magnitude of the ball's
momentum is 0.800 kg • m/s just before it lands on the ground?
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A tennis ball is dropped from a height of 5 m to the ground and the ball rebounded to a height of 4 m. If the mass of the basketball is 1.0 kg and it is in contact with the floor for 50 ms, determine the average force exerted by the ground to the basketball.
please explain the answer
2) A ball is dropped from rest at a height H. At height h (below H) the ball bounces off a surface with no loss in speed. The surface is tilted at 45°, so the ball bounces off horizon- tally. Derive an expression for the distance the ball travels in the horizontal direction. Plot the distance traveled in the horizontal direction as a function of h where h varies between O and H. 3) Imagine an...
Suppose a ball is dropped from a height of 14 feet. Each time it drops h feet, it rebounds 0.91h feet. Find the total distance traveled by the ball. Round your answer to two decimal places.
Question 3
DI Question 3 1 pts A basketball is dropped from a walkway above Bartow Arena. It falls from rest with a constant acceleration of 6 m/s2 until it reaches the floor 2.7 seconds later. A physics class is modeling the 1-D straight line motion as part of a class project They want construct a simple, but accurate, data table using the following equations: vi +at and x1 X+ v t which are familiar to you. Their instructor requires...