A bus starts from rest at a bus stop and accelerates at a rate of 1.12 m/s^2 for 11.0s. It runs at constant speed for 80.0 s and slows at a rate 1.20 m/s^2 until it stops at the next bus stop. (a) What is the maximum speed attained. (b) Find the total distance covered.

Question

A bus starts from rest at a bus stop and accelerates at a rate of 1.12 m/s^2 for 11.0s.  It runs at constant speed for 80.0 s and slows at a rate 1.20 m/s^2 until it stops at the next bus stop. (a) What is the maximum speed attained. (b) Find the total distance covered.

Anonymous · Answer

vmax is just after the 11seconds vmax= a*t distance covered: break it up into three times accelerating constant speed deaccelerating.