Question

The position (x)-time (t) graph for a particle of mass 1 kg moving x- axis is shown in figure. Find impulse on particle at

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A

- 20 Kg m/s

B

- 30 Kg m/s

C

- 10 Kg m/s

D

- 40 Kg m/s

Easy
Solution
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Correct option is C)

Velocity before is slope of graph which is

Velocity after is slope after which is
Change in velocity so change in momentum will be mass multiplied by change in velocity, i.e. which is also called impulse.

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