## Answers

Only authorized users can leave an answer!

If you are not satisfied with the answer or you can’t find one, then try to use the search above or find similar answers below.

Find similar answersPhysics, added 2021-09-15 02:11:53

Darwin’s explanation for why different species exist is best described as a (n) ...

Physics, added 2021-09-15 00:50:38

Darwin’s explanation for why different species exist is best described as a (n) ...

Physics, added 2021-09-07 05:11:21

Physics, added 2021-09-06 22:34:23

Physics, added 2021-08-31 15:56:48

Physics, added 2021-08-31 14:03:45

Physics, added 2021-08-30 17:12:53

Physics, added 2021-08-30 15:26:53

Answered by

jushmkWhen firing straight up: v^2 = u^2 - 2gh, where v = final velocity = 0, u = initial velocity, g = gravitational acceleration, h = maximum height attained. Then, 0 = u^2 - 2gh u = Sqrt (2gh) ---- (1) When firing at 45°, Initial velocity, U = u Sin 45 = Sqrt (2gh)·Sin 45 Maximum height, H = U^2*(Sin Ф)^2/2g substituting; H = [Sqrt (2gh)·Sin 45]^2*(Sin 45)^2]/2g H = [2gh*(Sin 45)^2*(Sin 45)^2]/2g H = [h*(Sin 45)^4] = h/4 Therefore, maximum height when the gun fires at 45° is a quarter of maximum height when the gun fires vertically up.