Question

The figure below shows a graph of vx versus t for the motion of a motorcyclist as he starts from rest and moves along the road in a straight line.


(a) Find the average acceleration for the time interval t = 0 to t = 12.0 s.
m/s2

(b) Estimate the time at which the acceleration has its greatest positive value.
s
What is the value of the acceleration at that instant?
m/s2

(c) When is the acceleration zero?
Acceleration is zero when t = s and when t > s.

(d) Estimate the maximum negative value of the acceleration.
m/s2
At what time does it occur?
s