What is the speed of the runner at t = 2.0 s
At the starting gun, a runner accelerates at 0.9 m/s2 for 4.1 s. The runner's acceleration is zero for the rest of the race.
(a) What is the speed of the runner at t = 2.0 s?
(b) What is the speed of the runner at the end of the race?
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