Question

When brakes are applied to the birthday direction produce 25 cm and the bus take 20 seconds to stop find initial velocity of the bus?

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