Asked by Chernet

A tennis ball machine fires a ball vertically upwards at time t=0 at 19.6 m/s. Assume that air resistance is negligible and take g=9.8 m/s^2. Calculate the displacement and velocity of ball at t=1 s.
Answered by Damon
v = Vi - 9.8 t
h = Hi + Vi t - 4.9 t^2
here: Vi = 19.6, Hi = 0, t = 1
so
v = 19.6 - 9.8*1
h = 0 + 19.6 - 4.9 * 1^2
Answered by Anonymous
For displacement 14.695m
Answered by negash
Excellent
Answered by negash
Freind and research
Answered by Naol Adunga
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Answered by Tilahub
23
Answered by Anonymous
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