A rock of mass 1.10kg and volume 283cm3 is irregular shape. A person throws the rock with a launch angle of 39.0° (above the horizontal) over flat level ground from a height of 0.668m above the ground. Ground level is at an elevation of 138m above sea level. The rock goes 7.40 m down range before it hits the ground. The rock bounces off the ground achieving a maximum height of 12.0cm and traveling an additional 18.0cm down range before coming to rest with a thud. Find the momentum of the rock at the instant it leaves the thrower’s hand.

Question

irishboy123 · Answer

Have you made an effort at this?

There is a lot of redundant info in here and quite a lot of drudgery too, that can be sidestepped if you can handle basic vectors.

First:  Show some working, or at least draw something. And suggest an approach.