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On a frictionless horizontal air table, puck A (with mass 0.366 kg) is moving toward puck B (with mass 0.254 kg ), which is initially at rest. After the collision, puck A has velocity 0.119 m/s to the left, and puck B has velocity 0.655 m/s to the right.
What was the speed of puck A (Vai) before the collision?
K I put v=v1(m1+m2)/(m1-m2)
v1=-.119 m/s since it moves in the left direction and i defined right as +ve
my initial velocity of puck a came to be -0.659 m/s, but it seems to be wrong.
Calculate , the change in the total kinetic energy of the system that occurs during the collision.
for the KE I got 0.333 J but I don't know why its wrong
thx guys
What was the speed of puck A (Vai) before the collision?
K I put v=v1(m1+m2)/(m1-m2)
v1=-.119 m/s since it moves in the left direction and i defined right as +ve
my initial velocity of puck a came to be -0.659 m/s, but it seems to be wrong.
Calculate , the change in the total kinetic energy of the system that occurs during the collision.
for the KE I got 0.333 J but I don't know why its wrong
thx guys
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