Question

After falling from rest from a height of 33 m, a 0.60-kg ball
rebounds upward, reaching a height of 23 m. If the contact between
ball and ground lasted 2.3 ms, what average force was exerted on
the ball? (Enter the magnitude.)

N

Answer #1

After falling from rest from a height of 27 m, a 0.46 kg ball
rebounds upward, reaching a height of 17 m. If the contact between
ball and ground lasted 2.1 ms, what average force was exerted on
the ball?

A ball falls from height of 20.0 m, hits the floor, and rebounds
vertically upward to height of 15.5 m. Assume that
mball = 0.335 kg.
(a) What is the impulse (in kg · m/s) delivered to the ball by
the floor?
b) If the ball is in contact with the floor for 0.0400 seconds,
what is the average force (in N) the floor exerts on the ball?

A 20 g ball is dropped from a height of 1.8 m. It rebounds from
the ground with 80% of the speed it had just before it hit the
ground. Assume that during the bounce the gound causes a constant
force on the ball for 75 ms. What is the force applied to the ball
by the ground in N?

A
ball of mass 2.25 kg is released from rest at height 5.29 m above
the floor. It falls, hits the ground, and rebounds to height 3.19 m
above the floor. Assume none of the losses are due to air friction.
Find the impulse, in N-s, exerted by the floor on the ball. The
sign of your answer will give the direction of the impulse.

A
ball of mass 5.93 kg is released from rest at height 7.62 m above
the floor. It falls, hits the ground, and rebounds to height 3.2 m
above the floor. Assume none of the losses are due to air friction.
Find the work done against friction, in J, on the ball during the
contact with the ground

A steel ball with mass 40.0 g is dropped from a height of 2.00 m
onto a horizontal steel slab. The ball rebounds to a height of 1.60
m.
(a) Calculate the impulse delivered to the ball during impact,
in N-m. Define upward as positive.
(b) If the ball is in contact with the slab for 2.00 ms, find
the average force on the ball during impact, in N. Define
upward as positive.

A rubber ball of mass 0.175 kg is released from rest from a
height of 1.25 m. It rebounds from the floor to reach a height of
0.630 m. What impulse was applied to the ball by the floor? (You
may safely ignore air resistance. Enter the magnitude in kg ·
m/s)

A ball of mass m falls from rest from a height of y1, collides
with the ground and bounces back up to y2. The collision time with
the ground is ?t. A) Determine the momentum of the ball immediately
before the collision with the ground. B) Determine the momentum of
the ball immediately after the collision with the ground. C)
Determine the average force exerted on the ball during the
collision. Now let: m = 0.080 kg y1 = 3.0...

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...

A soccer player kicks a soccer ball of mass 0.50 kg that is
initially at rest. The player's foot is in contact with the ball
for 1.8 10-3 s. The force of the kick is given by the following
formula for 0 t 1.8 10-3 s, where t is in seconds. F(t) = [(7.2
106)t - (2.2 109)t2] N (a) Find the magnitude of the impulse
imparted to the ball. Incorrect: Your answer is incorrect. Ns (b)
Find the magnitude...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 13 minutes ago

asked 31 minutes ago

asked 42 minutes ago

asked 53 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago