A sprinter runs 100.0 m in 9.87 seconds.If he travels at constant acceleration for the first 75.0 m and then at constant velocity for the final 25.0 m,what was his peak velocity?
A) 17.7 m/s.
B) 17.5 m/s.
C) 20.3 m/s.
D) 15.4 m/s.

Question

Quizplus · Accepted Answer

To find the peak velocity, we first calculate the time taken to cover the last 25 m at constant velocity. The total time is 9.87 s, and the time for the first 75 m can be found using the equation for constant acceleration. Solving these equations gives a peak velocity of approximately 17.7 m/s.

A Sprinter Runs 100