Answer:
16.67 s
Explanation:
Given that the
Grant sprints 50m to the right with an average velocity of 3 m/s.
According to definition of speed,
Speed = distance/time
Substitute speed and distance into the formula.
3 = 50 / t
Make time t the subject of formula
t = 50 / 3
t = 16.667 seconds
Therefore, the number of seconds the Grant sprint is 16.7 s approximately.
3.125J
K.E.= 1/2(mass)(velocity)^2
K.E.=1/2(0.25)(5)^2=3.125
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