Question

A car of mass m1 = 2000.0 kg is moving at speed v1i = 20.0m/s
towards East. A truck

of mass m2 = 5000.0 kg is moving at speed v2i = 10.0m/s towards
North. They collide at an

intersection and get entangled (complete inelastic
collision).

1. What is the magnitude and direction of the final velocity of the
entangled automobiles?

2. How much kinetic energy is lost in the collision. That is,
calculate the change in the

kinetic energy of the system.

Answer #1

A glider of mass m1 = 8 kg has a velocity
v1i = +2 m/s before colliding
with a second glider of mass m2 = 4 kg, moving
with velocity v2i = -4 m/s.
After the collision the first glider has a velocity of
v1f = -1 m/s. This collision
is
Elastic
Partially inelastic
Totally inelastic
Impossible
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Suppose that we have two masses, m1 and m2, traveling at initial
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1. A 1000.0 kg car is moving at 20 km/h. If a 2000.0 kg truck
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