Question

The world record for the women's 100 m sprint in 1993 stood at 10.49s (a)what average speed does this represents (b) if the athletes accelerates to a steady speed in the first 1.5s of the race and then runs at this speed until reaching the finishing line, at what steady speed does she run (Hint. solve by drawing the velocity time graph )​

Answer 1

a) distance=100m

time=10.49 sec

avg Speed=total distance traveled in total time=100/10.49=9.532m/s

b).......don't know.......

Answer 2

Answer:

a 9.53 m/s approx b.10.27m/s approx