Question

A force-time graph for a linear motion of a body is shown in the figure. The change linear momentum between 0 and 7 is (a) 2 N-s (b) 3 N-s (c) 4 N-s (d) 5 N-s ​

Answer 1

Explanation:

The area under the graph gives linear momentumLinear momentum=Force×timeChange in momentum=(−2×2)+(4×1)+(−1×1)+(1×1)=5−5=0Change in momentum=0

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