USA Bus Lines

A bus is moving at 25m/s. The driver steps on the bakes and the bus stops in 3.0s. What is the average acce...?

A bus is moving at 25m/s. The driver steps on the bakes and the bus stops in 3.0s. What is the average acceleration of the bus while braking? please show me how to do this question and not just the answer for future questions

Public Comments

1. << What is the average acceleration of the bus while braking? >> Working formula is a = (Vf - Vo)/T where a = acceleration Vf = final velocity = 0 (when bus stops) Vo = initial velocity = 25 m/sec (given) T = stopping time = 3 sec (given) Substituting values, a = (0 - 25)/3 = - 8.33 m/sec^2 NOTE -- the negative sign attached to the acceleration is merely an indication that the bus was (obviously) slowing down when the brakes were applied. Hope this helps.