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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. |
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Answer» (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 |
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