A car of mass 250 kg, is accelerated from rest by a net force of 400 N for 20 s.  After this, the engine is switched off and the car slows to a halt, due to a net  force of 100 N against its motion. What is the maximum velocity the car reaches  and what is the total journey time, where the car is in motion?

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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: