SOLUTION: A ball is thrown from 4 feet off the ground with a vertical velocity of 30 feet per second.
Is the ball at its maximum height after 1 second? In two or more complete sentences,
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Question 971713: A ball is thrown from 4 feet off the ground with a vertical velocity of 30 feet per second.
Is the ball at its maximum height after 1 second? In two or more complete sentences, explain how you know whether or not the ball is at its maximum height.
Answer by anand429(138) (Show Source): You can put this solution on YOUR website!
Using the equation of motion,
(where symbols have usual meanings)
From above equation, we get,
(At max height, velocity =0 and taking g= 32feet/second^2 approx.)
=>
So, it will take 30/32 seconds(i.e less than 1 second to reach maximum height, and then ball starts descending. So, after 1 sec, ball is below its maximum height and in downward motion.
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