Question

When brakes are applied to a bus the retardation produced is 25ms-2 and the bus takes 20s to stop. Calculate :1. The inital velocity of bus 2. Distance travelled by bus during the time?

Answer 1

V=u-at

0=u-0.25*20

-u=-5

so u=5m/s

s=ut-1/2*a*t*t=5*20-1/2*0.25*20*20=100-50=50metres