Question

A ball with mass M, moving horizontally at 5.4 m/s, collides elastically with a block with mass 2.8M that is initially hanging at rest from the ceiling on the end of a 46-cm wire. Find the maximum angle through which the block swings after it is hit, in degrees.

Answer #1

A ball of mass 0.250 kg that is moving with a speed of 5.5 m/s
collides head-on and elastically with another ball initially at
rest. Immediately after the collision, the incoming ball bounces
backward with a speed of 3.1 m/s . Calculate the velocity of the
target ball after the collision. Calculate the mass of the target
ball.

A 1 kg block moving at 10 m/s collides elastically with a 3 kg
block initially at rest. The final kinetic energy of the 1 kg block
is what percent of its initial kinetic energy?

A ball of mass 0.310 kg that is moving with a speed of 5.7 m/s
collides head-on and elastically with another ball initially at
rest. Immediately after the collision, the incoming ball bounces
backward with a speed of 3.1 m/s .
1. Calculate the velocity of the target ball after the
collision.
2. Calculate the mass of the target ball.

A ball of mass 0.265 kg that is moving with a speed of 5.1 m/s
collides head-on and elastically with another ball initially at
rest. Immediately after the collision, the incoming ball bounces
backward with a speed of 3.5 m/s .
Part A: Calculate the velocity of the target ball after the
collision.
Part B: Calculate the mass of the target ball.

A steel ball of mass 200g moving with a velocity of 10 m/s
collides elastically with another ball of same mass at rest, then
calculate the followings. (your answer must be in SI units) (4
points)
a. Total momentum of the system before collision =
b. Total Kinetic energy of the system before collision =
c. Total momentum of the system after collision =
d. Total Kinetic energy of the system after collision

A mass m is moving horizontally with a speed of 3.14
m/s just before it strikes a uniform rod of the same mass with
length L = 2.12 m, which is initially hanging vertically.
The rod is supported by a friction-less axle through a point
L/4 down from the upper end of the rod. To what maximum
angle (in degrees, with respect to its initial vertical position)
will the rod swing before coming back down?

A 2.00-kg ball is moving at 4.80 m/s toward the right. It
collides elastically with a 4.00-kg ball that is initially at
rest.
1. Calculate the final velocity of the 2.00-kg ball.
(Express your answer to three significant figures.)
2. Calculate the final velocity of the 4.00-kg ball.
(Express your answer to three significant figures.)

A ball of mass 0.305kg that is moving with a speed of 5.7m/s
collides head-on and elastically with another ball initially at
rest. Immediately after the collision, the incoming ball bounces
backward with a speed of 3.3m/s.
Calculate the velocity of the target ball after the
collision.
Calculate the mass of the target ball.

A) A block of mass m1=6.0 kg is initially moving at 5.0 m/s to
the right and collides inelastically with an initially stationary
block of mass m2=18.0 kg. The two objects become stuck together.
Find the final velocity of the two blocks.
B) A block of mass m1=6.0 kg is initially moving at 5.0 m/s to
the right and collides elastically with an initially stationary
block of mass m2=18.0 kg.
After the collision, block m2 is moving to the right...

8) A 0.280 kg glider moving at a 0.900 ?̂ m/s on horizontal
track collides elastically with a second glider initially at rest.
After the collision the velocity of the first glider is a
0.240 ?̂ m/s. What is the mass of the second glider?

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