A sprinter is running a 100m long race. She begins at rest, then increases her speed steadily for 4.10s as she runs the first 24.0m of a race, then continues
with a constant speed.
What is her maximum speed?
unit
How long does she take to complete the race?
unit
V

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

neither accurate nor precise.