Question

A car accelerates it speed from 18km/hr to54km/hr accelerates of 2m/s sq find time taken

Answer 1

Answer:

a = 2m/s sq.

v = 54 km/h = 54 x 5/18 = 15 m/s

u = 18 km/h = 54 x 5/18 = 5m/s

a = (v-u)/t

2 = (15-5)/t

2 = 10/t

2t = 10

t = 10/2 = 5 s.