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The linear momentum P of a body varies with time and is given by the equation P = x + yt 2 where x and y are constants. The net force acting on the body for a one dimensional motion is proportional to-

1. t 2
2. a constant
3. 1 t
4. t /////////////////////////////////////////////// 6N 2kg 1kg 3N PG #2

Correct answer: t /////////////////////////////////////////////// 6N 2kg 1kg 3N PG #2

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