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.
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
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.