alleryA force of 10 N acts on a body of mass 2 kg for 5 s. The change in its momentum is:
A2 kg·m/s
B10 kg·m/s
C25 kg·m/s
D50 kg·m/s
Answer & Solution
Correct answer: D. 50 kg·m/s
We have Δp = FΔt.
That is Δp = 10·5.
So Δp = 50 kg·m/s.
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