Asked by chelsea

A golf ball rolls off a horizontal cliff with an initial speed of 14.1 m/s. The ball falls a vertical distance of 14.0 m into a lake below. (a) How much time does the ball spend in the air? (b) What is the speed v of the ball just before it strikes the water?

Answers

Answered by bobpursley
a. hf=hi-1/2 9.8 t^2 solve for t.

b. initial PE+initial Ke=finalPE+finalKE
solve for vf from that.
Answered by gady
t=3.1s
Answered by gady
a t=3.1s b h=57.5 c v=45m/s
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