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 8 s is:
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a
24 N-s
b
20 N-s
c
12 N-s
d
6 N-s
answer is C.
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Detailed Solution
Change in momentum,Δp=∫Fdt= Area of F−t graph =12×2×6−3×2+4×3=12N−s