A car of mass 3m traveling at a speed of v to the right collides elastically with a car of mass m traveling at a speed v to the left.  Find the speed of both cars after the collision. b) Suppose the car crash happens over a time t. Find the force that each car felt in the crash c) Suppose v = 30 m/s, m = 1000 kg, and t = 0.5 s. What is the force each car feels? Would this car crash be         dangerous to its passengers?

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: