Asked by jessica

A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. What will be it's speed when it strikes the ground below?

Answers

Answered by bobpursley
the initial energy is 1/2 m v^2 + mgh

the final energy is 1/2 m vf^2 set them equal.

1/2 m vf^2=1/2 m vi^2 + mg265
solve for Vf
Answered by Anonymous
200
I think it is infinity
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