Two 1.7 kg bodies, A and B, collide. The velocities before the collision are A = (14 + 34) m/s and B = (−15 + 9.0) m/s. After the collision, 'A = (−4.0 + 18) m/s.
(a) What is the final velocity of B?
=
m/s
(b) What is the change in the total kinetic energy (including
sign)?
J
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