(a) the sum of products of masses and velocities of two moving bodies before and after their collision remains the same.

Question

Name the laws involved in the following situations : 

(a) the sum of products of masses and velocities of two moving bodies before and after their collision remains the same. 

(b) a body of mass 5 kg can be accelerated more easily by a force than another body of mass 50 kg under similar conditions 

(c) when person A standing on roller skates pushes another person B (also standing on roller skates) and makes him move to the right side, then the person A himself gets moved to the left side by an equal distance. 

(d) if there were no friction and no air resistance, then a moving bicycle would go on moving for ever.

Answer 1

(a)Law of conservation of momentum

(b)Newton’s second law of motion

(c) Newton’s third law of motion

(d)Newton’s first law of motion