Question

A vehicle accelerating. its velocity an an instant is 30km/hr, after 2sec it is 33.6km/hr, and further 33.6km/hr find the acceleration in m/s

Answer 1

initial velocity = u = 30km/hr = 30000m/3600s = 8.33 m/s

final velocity = v = 33.6km/hr = 33600m/3600s = 9.33 m/s

time = t = 2 s

acceleration = a = ?


a = (v-u)/t

a = (9.33m/s - 8.33m/s)/2s

a = 1m/s/2s

a = 0.5 m/s²

vehicle acceleration is 0.5 m/s²