Question

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.

Answer #1

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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 0.252
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.
= ?

On a frictionless horizontal air table, puck A (with mass 0.246
kg ) is moving toward puck B (with mass 0.372 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.
Part A
What was the speed vAi of puck A before the
collision?
View Available Hint(s)
vAi =
1.111.11
m/s
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1. On a frictionless horizontal air table, puck A (with mass
0.252 kgkg ) is moving toward puck B (with mass 0.375 kgkg ), which
is initially at rest. After the collision, puck A has velocity
0.122 m/sm/s to the left, and puck B has velocity 0.651 m/sm/s to
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Calculate ΔKΔKDeltaK, the change in the total kinetic energy of
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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
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