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प्रश्न
The force 'F' acting on a particle of mass 'm' is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8s is:
विकल्प
24Ns
20Ns
12Ns
6Ns
MCQ
उत्तर
12Ns
Explanation:
Change in momentum
Δp = `int "F" "dt"`
= F-t graph's area
= ar of Δ − ar of + ar of
= `1/2 xx 2 xx 6 - 3 xx 2 + 4 xx 3 = 12"N-s"`
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