A car with a mass of 2,200 kg traveling at a velocity of 20 m/sec collides with a parked car. After the collision its velocity is +10 m/sec. If the mass of the parked car is 1,200 kg, determine:
(a) Speed of the parked car after the collision.
(b) Average force exerted on the parked car if the collision time (delta t) =0.1 sec.
(c) Total momentum after collision
A: 18.33 m/s.
2,200 * 20 = 2,200 * 10 + 1,200 * V2
V2 = 22,000/1,200 = 18.33 m/s.
B: 220,000 N.
F = ...
This solution looks at the speed, force and momentum variables due to a collision.