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As shown in the figure below, object m 1 = 1.45 kg starts at an initial height h

ID: 1335767 • Letter: A

Question

As shown in the figure below, object m1 = 1.45 kg starts at an initial height h1i = 0.255 m and speed v1i = 4.00 m/s, swings downward and strikes (in an elastic collision) objectm2 = 4.50 kg which is initially at rest. Determine the following.

(a) speed of m1 just before the collision.
m/s

(b) velocity (magnitude and direction) of each ball just after the collision (Assume the positive direction is toward the right. Indicate the direction with the sign of your answer.)
m/s (m1)
m/s (m2)

(c) height to which each ball swings after the collision (ignoring air resistance)
m (m1)
m (m2)

Explanation / Answer

APPLY LAW OF CONSEVATION OF MOMENTUM+ENERGY