A 12.3kg ball is shot out of a cannon vertically up. The spring (k= 1.62x10^4 N/m) in the cannon is compressed by 61.7 cm to shoot the ball.?
A) what will be the max height of the ball?
B) what was the velocity of the ball when it reaches a height of 9.73m
C) if the ball loses 21% of its initial energy what will the height of the ball be when it is at a speed of 8.32 m/s
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