I need help with physics?

Posted on 2015-10-16 05:57:00 in Physics by JETTY

The question is "You dart from rock to rock and crawl the last few feet to get closer to the cliff.
now you are only 60 meters from the base of the 40m high cliff. Armed with the knowledge that your giant paintball bazooka has a muzzle velocity of 35m/s, and remembering the trig identity that Sin^2(Theta) = 1-Cos^2(Theta), you do an insanely difficult calculation to find out the correct launch angle that you need to reach the top of the cliff.
A. At what angle should you aim your giant paintball bazooka

B. how long will it take for your Giant Paintball to splatter the cannon on top of the cliff

C. what is the Y-component of the giant paintball's velocity just before it impacts the cannon

D. and what is its velocity magnitude and direction just before it impacts the cannon

Sorry for asking or answers but I'm bogged down as is with hw and its already 1 Am. Thank you friends.

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