Question

A motorcyclist heading east through a small town accelerates at a constant 4.0 m/s after he leaves the city limits. From rest, he heads towards the city-limits signpost while he moves east at 15 m/s. Find his velocity at t=2.0s

Answer 1

V initial = 15m/s

V finial = ?

a= 4.0

vf = vi(t) +at

vf= 15 + 4(2)

Vf = 8+15 = 23 m/s