Question

A bus runing at a speed of 18 km/hr is stop in 2.5 sec By applying breaks. calculate the redeation produced.

Answer 1

U=18km/hr

V=0km/hr (at a time the velocity will become 0,due to

A=? retardation)

T=2.5

: V=U+AT

5

18km=18 * — = 5m/s

18

: 0=5+A*2.5

: 2.5A=5

5

: A=—

2.5

: A=2m/s²