Question

A 1.5 kg ball is dropped from a height of 3 m above the ground and upon striking the ground bounces up to a height of 2 m. Ignoring air resistance, find the time it takes the ball to bounce up to a height of 2 m after it is dropped.

Answer #1

A 2.33 kg ball is
dropped from a height of 3 m. The ball then bounces back
upward a distance of 2.2 m. How much energy was lost in the
collision with the ground?
50.2 J
18.3 J
68.5 J
118.7 J
A 2.33 kg ball is
dropped from a height of 3 m. The ball then bounces back
upward a distance of 2.2 m. How much momentum does the ball have
immediately after bouncing off the ground?
5.13 kg m/s
21.6...

A 0.6 kg ball is dropped from a height, h, of 2 meters (at point
A). It hits the ground and bounces back up to a height of 1 meter
(at point B) on its first bounce. (3 pts each)
a. What is the total energy of the ball at A?
b. What is the total energy of the ball at B?
c. Why did the ball not bounce back up to its starting
height?

(a)
A superball of mass 0.1kg is dropped from a height of 3 meters
above the floor. It then bounces up to a height of 2.6 meters. Find
the velocity of the ball the instant before it reaches ground
level. (Hint: use energy equations)
(b) Calculate the velocity the ball must have after the bounce
at the instant it leaves the ground the reach the height of 2.6
meters.
(c) Use these velocities to calculate the change i. momentum
of...

A 2.0-kg ball is dropped from a height of 5.0 meters. It hits
the ground and bounces upward. If it reaches a height of only 3.2
m, determine the magnitude of the work done by non-conservative
forces in this situation.

A rock is dropped, from rest, from a height of 8.9 m above the
ground at t = 0 s. At the same time that the rock is
dropped a stone is thrown upward from a height of 1.1 m above the
ground at a speed of 7.1 m/s. The stone travels straight upward
toward the rock. There is no air resistance.
a. Determine the height above the ground where the rock hits
with the stone. Blank 1. Calculate the...

A 1-kg ball is released from a height of 6 m, and a 2-kg ball is
released from a height of 3 m. Air resistance is negligible as they
fall. Which of the following statements about these balls are
correct? (There could be more than one correct choice.)
Both balls will reach the ground with the same speed.
As they reach the ground, the 1-kg ball will have more kinetic
energy than the 2-kg ball because it was dropped from...

A tennis ball is dropped from 1.95 m above the ground. It
rebounds to a height of 0.932 m.
Part 1.With what velocity does it hit the ground? The acceleration
of gravity is 9.8 m/s 2 . (Let down be negative.) Answer in units
of m/s.
Part 2. With what velocity does it leave the ground? Answer in
units of m/s.
Part 3. If the tennis ball were in contact with the ground for
0.00859 s, find the acceleration given...

Consider a 1 kg ball and a 6 kg ball of the same size dropped
from a height of 3 m at the same time above the ground.
a) If we consider air resistance, do both objects fall or
accelerate at the same rate? Explain.
b) If we dropped a 1 kg ball and a 1 kg square plate of
dimension 20 cm x 20 cm, do both objects fall or accelerate at the
same rate? Explain.

A rubber ball of mass m is dropped from a height h. If the ball
loses energy on each bounce so that its speed just after each
bounce is 90% of its speed just before each bounce, then Önd an
expression for the height the ball reaches after the 3rd bounce

A ball of mass 0.4 kg is lifted up to a height of 10 m. what is
the ball's potential energy at this point? if the ball is dropped
from the rest at this height, what is the ball's speed just before
it hits the ground. if the force of air resistance is 0.1 N, what
is the ball's speed just before it hits the ground?

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