Usain bolt can run the 100 m dash in 9.58 s. what is usain's average acceleration during this sprint?

Assuming Usain Bolt starts from rest (so, its initial velocity is zero), and that his motion is uniformly accelerated, his position at time t  is given by

where a is the average acceleration and t the time. In our problem, the distance covered is S=100 m and the time taken is t=9.58 s, therefore the average acceleration can be found by re-arranging the previous formula:

Answer choice a test prep