Question

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200- kg puck has a speed of 1.00 m/s at an angle of θ = 53.0° to the positive x axis. (a) Determine the velocity of the 0.300-kg puck after the collision. (b) Find the fraction of kinetic energy lost in the collision.

Answer #1

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A 0.300-kg puck, initially at rest on a horizontal, frictionless
surface, is struck by a 0.200-kg puck moving initially along the
x axis with a speed of 2.00 m/s. After the collision, the
0.200-kg puck has a speed of 1.00 m/s at an angle of ? =
49.0° to the positive x axis.
(a) Determine the velocity of the 0.300-kg puck after the
collision.
(b) Find the fraction of kinetic energy transferred away or
transformed to other forms of energy...

A 0.30-kg puck, initially at rest on a frictionless horizontal
surface, is struck by a 0.20-kg puck that is initially moving along
the x-axis with a velocity of 8.5 m/s. After the
collision, the 0.20-kg puck has a speed of 5.1 m/s at an angle
of
θ = 53°
to the positive x-axis.
(a) Determine the velocity of the 0.30-kg puck after the
collision.
magnitude
m/s
direction
° from the positive x-axis
(b) Find the fraction of kinetic energy lost...

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0.22 kg puck has a speed of 1.5 m/s at an
angle of 38◦ to the positive x axis.
Determine the magnitude of the velocity of
the 0.477 kg puck after the collision.

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axis. After the collision, the 0.405 kg ball has a velocity of
0.215 m/s at an angle of 36.9 ? above the x axis in the first
quadrant. Both balls move on a frictionless, horizontal
surface.
What is the magnitude...

A ball with a mass of 1.1 kg is initially at rest. It is struck
by a second ball having a mass of 1.3 kg, initially moving with a
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collision, the 1.3 kg ball has a velocity of 2.7 m/s at an angle of
35? above the x axis in the first quadrant. Both balls move on a
frictionless, horizontal surface. Do not assume that the collision...

On a frictionless horizontal air table, puck A (with mass 0.252
kg ) is moving toward puck B (with mass 0.368 kg), which is
initially at rest. After the collision, puck A has velocity 0.121
m/s to the left, and puck B has velocity 0.651 m/s to the
right.
What was the speed vAi of puck A before the
collision?
= 0.830 m/s
Calculate ?K, the change in total kinetic energy of
the system that occurs in the collision.
= ?

3. A ball of mass 2.00 kg, resting on a horizontal frictionless
surface, gets hit by another ball of mass 1.50 kg moving in the
+x-direction with a speed 4.00 m/s. After the collision, the 1.50
kg ball has a speed of 2.00 m/s at an angle 60.0° counterclockwise
from the +x-direction. a) Find the velocity of the 2.00 kg ball
just after the collision. Express your answer in vector form. b)
Compute the percent of kinetic energy lost in...

On a frictionless horizontal air table, puck A (with mass 0.247
kg ) is moving toward puck B (with mass 0.374 kg ), which is
initially at rest. After the collision, puck A has velocity 0.124
m/s to the left, and puck B has velocity 0.655 m/s to the
right.
What was the speed vAi of puck A before the collision? =
0.868m/s
Calculate ΔK, the change in the total kinetic energy of the
system that occurs during the collision.

On a frictionless horizontal air table, puck A (with mass 0.255
kg ) is moving toward puck B (with mass 0.375 kg ), which is
initially at rest. After the collision, puck A has velocity 0.121
m/s to the left, and puck B has velocity 0.653 m/s to the
right.
a) What was the speed vAi of puck A before the collision?
b) Calculate ΔK, the change in the total kinetic energy of the
system that occurs during the collision.

On a frictionless horizontal air table, puck A (with mass 0.245
kg ) is moving toward puck B (with mass 0.373 kg ), which is
initially at rest. After the collision, puck A has velocity 0.118
m/s to the left, and puck B has velocity 0.647 m/s to the
right.
Calculate ΔK, the change in the total kinetic energy of the
system that occurs during the collision.

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