A vehicle applies brakes and skids through a distance equal to 40 m before colliding with another parked vehicle, the weight of which is 60% of the former. From fundamental principles compute the initial speed of moving vehicle, if the distance which both vehicles skid through after the collision, before stopping is 12 m. Assume average friction coefficient as 0.6. Show the various steps in the analysis and mention the assumption made in each step.

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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: