0.200 m/s 0.400 m/s 30.0 g 10.0 g
A 10.0 g marble slides
to the left at a speed of 0.400 m/s
on the frictionless, horizontal
surface of an icy New York sidewalk
and has a head-on, elastic
collision with a larger 30.0 g
marble sliding to the right at a
speed of 0.200 m/s (Fig).
(a) Find the velocity of each
marble (magnitude and direction) after the collision. (Since the collision
is head-on, all motion is along a line.) (b) Calculate the change in momentum
(the momentum after the collision minus the momentum before
the collision) for each marble. Compare your values for each marble.
(c) Calculate the change in kinetic energy (the kinetic energy after the collision minus the kinetic energy before the collision) for each marble.
Compare your values for each marble.
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