Question

if a force of 12 Newton acting on a body changes its velocity uniformly from 2 m per second to 5 metre per second in 20 seconds then what is the mass of the body​

Answer 1

Answer:

80 kg

Explanation:

Force = 12 N

Initial velocity u = 2 m/s

Final velocity v = 5 m/s

Time = 20 s

$acceleration \: = \frac{v - u}{t} \: = \frac{5 - 2}{20} = \frac{3}{20} m {s}^{ - 2}$

Force = ma

12 = m × 3/20

m = 80 kg

Answer 2

Answer:

80 kg

Explanation:

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