Asked by Petrik
An athlete on a trampoline leaps straight up into the air with an initial speed of 9.3 m/s. Find the following:
(b) the speed of the athlete when she is halfway up to her maximum height
(b) the speed of the athlete when she is halfway up to her maximum height
Answers
Answered by
bobpursley
halfway up used up half the energy.
1/2 mv^2= 1/2 energy
so v= sqrt 1/2 of original speed.
1/2 mv^2= 1/2 energy
so v= sqrt 1/2 of original speed.
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