Question

State Newton's second law of motion. A body of mass 4 kg is initially at rest. A force acts
on it for 4 s and then ceases to acts. The body covers 4 m in next 4 s. Find the force acting
on the body during first 4 s of its motion and total distance covered by it for the whole
journey of 8 s.

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Answer 1

From Newton's second law of motion, F = ma. ... This means that if no force is applied on the body, its acceleration will be zero. If the body is at rest, then it will remain in the state of rest and if it is moving, then it will remain moving in the same direction with the same speed.

Answer 2

Newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.