Q.

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

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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 = Area under F-t graph in that interval = Area of ∆ABCD - Area of rectangle CDEF + Area of rectangle FGHI
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