Laws Of Motion Question 301

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:

Options:

A) 24 Ns

B) 20 Ns

C) 12 Ns

D) 6 Ns

Show Answer

Answer:

Correct Answer: C

Solution:

[c] Change in momentum, Δp=Fdt

=Area of F-t graph 

= ar of Δ ar of + ar of 

=12×2×63×2+4×3=12 N-s



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