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A ball of mass 45kg thrown upward with a velocity of 40m/s 1. calculate the kinetic energy of the ball 2. if the ball reaches the height of 30m find the potential energy exerted​
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39 votes
39 votes
A ball of mass 45kg thrown upward with a velocity of 40m/s

1. calculate the kinetic energy of the ball
2. if the ball reaches the height of 30m find the potential energy exerted​

User LMS
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1 Answer

15 votes
15 votes
1) KE=1/2*m*v^2
1/2*45*40^2
KE=36,000J

2) PE=mgh
45*9.81*30
PE=13243.5J
User Kashlo
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2.8k points
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