(i) A force of 20 N acts on a body of mass 5 kg at rest. What is the acceleration of the body ? (ii) What is its velocity after 5 seconds if the same force acts ? (iii) After 5 seconds if the force ceases to act how will the body move ?

(i) A force of 20 N acts on a body of mass 5 kg at rest. What is the a

1.	(i) A force of 20 N acts on a body of mass 5 kg at rest. What is the acceleration of the body ? (ii) What is its velocity after 5 seconds if the same force acts ? (iii) After 5 seconds if the force ceases to act how will the body move ?
Answer» Answer :(i) 4 `ms^(-2)` (II) 20 `ms^(-1)` (iii) When the force ceases to act, the BODY continues to move with uniform velocity 20 `ms^(-1)` along a straight line by Newton.s FIRST law. (In the ABSENCE of friction)