Question

The force of 2N acting on the body chagnes its velocity

uniformly from 2 ms-1 to 5 ms-1 in 10 sec. Calculate the

mass of body​

Answer 1

Explanation:

Force = 2 N

v = 5 m/s

u = 2 m/s

t = 10 s

$a = \frac{v - u}{t} = \frac{5 - 2}{10} = \frac{3}{10} \: m {s}^{ - 2}$

$mass = \frac{force}{acceleration}$

$= \frac{2}{ \frac{3}{10} } = \frac{20}{3} = 6.67 \: kg$

Therefore, the mass of the body is 6.67 kg.

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