I need help on these physics question. can someone please helpme with any or all

Question

I need help on these physics question. can someone please helpme with any or all of these. I need to know how to do all of these,so if you guys can take like a question or two and help me with allthe question. I need the work and the answer. Thank you somuch!

Question #1

An 82.00kg man jumps from the top of a building 37.02m above anet. The air resistance exerts 170.8N force on the man as he falls.What is the velocity of the man just before hitting the net?

Question #2

A .7700kg ball is thrown straight up with initial velocity of8.720m/s. at the balls peak a .07kg dart, travelling parallel tothe ground, with kinetic energy of 73.80J strikes the ball. Thedart sticks in the ball after the collision. How far away from theball’s original position do they land?

Question #3

A cannon fires a 7.120kg projectile at 36.75 degrees. Theprojectile lands in a cart that is on the same level surface as thecannon. If the 470.6kg cart is pushed 12.35m along the ground in2.850 seconds Then how fast was the projectile fired?

Question #4

A 5.95kg object is thrown 17.10m/s at a 30 degree angle andcollides head on at its peak with a 14.5kg object fired at 27degrees which Is also at its peak. At what velocity was the 14.5kgobject fired?

Question 5

A satellite orbits the earth at 7870m/s. how far from theearth’s surface is the satellite orbiting? At what speedwould the satellite have to travel if it’s height above thesurface were to be doubled?

Question 6

A 42.75 kg person dives from a 17m platform into a pool. The guycomes to a stop 3.3800m below the surface of the water. Whatis the change in the guy’s momentum from the top of theplatform to the surface of the water? What amount of force isexerted on the guy while being stopped by the water?

Question 7

A .075kg ball is dropped from a height of 18m and bouncesvertically until someone finally stops it. The ball loses 17% ofits kinetic energy each time it bounces. How high will it bouncethe fifth time? What velocity will the ball have right before ithits the ground on that fifth bounce?

Explanation / Answer

I don't understand. what do you mean by the ball. and the velocityof the ball?

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