Question

On a frictionless horizontal air table, puck A (with mass 0.245 kg k g ) is...

On a frictionless horizontal air table, puck A (with mass 0.245 kg
k
g
) is moving toward puck B (with mass 0.372 kg
k
g
), which is initially at rest. After the collision, puck A has velocity 0.125 m/s
m
/
s
to the left, and puck B has velocity 0.654 m/s
m
/
s
to the right.
Part A Part complete
What was the speed vAi
v
A
i
of puck A before the collision?
View Available Hint(s)
vAi
v
A
i
=
0.868
m/s
m
/
s
SubmitPrevious Answers
Correct
If you are required to use the answer obtained for a subsequent hint or part, use your unrounded/full precision answer.
Part B
Calculate ΔK
Δ
K
, the change in the total kinetic energy of the system that occurs during the collision.
View Available Hint(s)


ΔK
Δ
K
=
0.7
J
J
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