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Question:

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

24 Ns

20 Ns

12 Ns

6 Ns

Solution:

ΔP=(12)(2)(6)−(3)(2)+(4)(3)=6+12=18 Ns