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    				| 1. | State newtons second law of motion and use it to define the unit of force in cgs system. | 
| Answer» Answer: According to Newton's second law, the RATE of CHANGE of momentum is directly proportional to the applied force, so. where k is a CONSTANT. The unit of force is so chosen that k is equal to one. If m = 1, a = 1 and F = 1, then. So a unit force is that force which produces a unit acceleration in a body of unit mass. Explanation: | |