Question

MCQ : What force will change the velocity of a body of mass 1 kg from 20 m/s to 30 m/s in 2 s?

September 20, 2023

Answer

Question

What force will change the velocity of a body of mass 1 kg from 20 m/s to 30 m/s in 2 s?

25 N
5 N
10 N
2 N

Answer

5 N

Explanation

F = Δp/t

F = $m(v-u)\over t$

F = $1 \times (30-20)\over 2$

F = $1 \times (10)\over 2$

F = 5 N

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