Question

A 1000kg vehicle is moving with velocity 10 m/s. Calculate the magnitude of force which can increase its velocity to 25 m/s in 2s

Answer 1

Given,

m = 1000 kg

v = 25 m/s

u = 10 m/s

t = 2 s

a = v-u /t

a = 25-10 / 2

a = 15/2

a = 7.5 m/s

F = ma

F = 1000 × 7.5

F = 7500 N