A sprinter explodes out of the starting block with an acceleration of 12.9 m/s2, which she sustains for 1.2 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity at t = 1.2 s?
Added by Gadget G.
Step 1
2 s using the equation: v = u + at where: v = final velocity u = initial velocity (assumed to be 0 m/s since she starts from rest) a = acceleration (12.9 m/s^2) t = time (1.2 s) Show more…
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