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A cannon shoots a 6 lb shell straight up. It reaches its maximum height, 1024 feet, and splits into two pieces, 2 lb and 4 lb. The two pieces are observed to strike the ground simultaneously. The 4 lb piece hits the ground 1600 feet away from the explosion(measured along the x AXIS)

a. How long would it have taken the shell to return to the ground if it had not split?

I found the TIME=8 seconds.

b.Find the velocity of each of the two pieces just after the explosion.

2lb piece - 400 ft/s

4lb piece - 200ft/s

AND PART "C" is where I get stuck!!! PLEASE HELP HERE.WHAT SHOULD I DO.

Here is part "C"

c. Find the momentum of each piece just before they strike the ground.

Please Help

The answer in the book is

2lb piece - p(vector) = -25i(unit vector)x - 16i(unit vector)z

4lb piece - p(vector) = 25i(unit vector)x - 32i(unit vector)z

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# Homework Help: Please Help With A Physics Problem

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