# Principles of Mechanics 4

Anonymous

Question description

a) Two vehicles travelling on a road in the same direction collide. Vehicle 1 has a mass of 1200kg  and is travelling at 30m/s. Vehicle 2 has a mass of 900kg and is travelling at 45m/s. Assuming that the cars momentarily lock together and continue moving in the same direction, Determine the new velocity (combined) of the cars after the collision??

b) Determine the change in momentum of each vehicle?

c) If the time of deceleration of the vehicle 2 during the collision is 0.15 seconds. Determine the average force acting on this vehicle during this time?

d) Determine the average force acting on vehicle 1 during the 0.15 seconds?

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