Moe and Larry are ice skating at their neighborhood rink. Moe
(100 kg) is heading north at 3
mys when he collides with Larry (75 kg) who is heading east at
2 m/s. They fall in a heap on the ice and
cling on to each other for dear life as they go skidding
across the rinK.
a lf momentum is conserved in this collision, write out the
equation or equations for momentum
conservation. Otherwise, indicate NOT CONSERVED.
b if kinetic energy is conserved in the collision, write out
the equation or equations for kinetiC
energy conservation. Otherwise, indicate NOT CONSERVED
C What is the direction (ex: "10° South of East") of their
common velocity after the collision?
d What is the magnitude of their velocity after the
collision?
e As they slide, friction from the ice slows them to a stop in
8 seconds. What was the magnitude
of the frictional force exerted on them by the ice?