SOLUTION: A ball thrown with velocity of 28 meters per second from a cliff that is 40 meters high. h=-4.9t^2-28t+40. Find the time it takes the ball to hit the ground. Round to nearest tenth
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Question 1089502: A ball thrown with velocity of 28 meters per second from a cliff that is 40 meters high. h=-4.9t^2-28t+40. Find the time it takes the ball to hit the ground. Round to nearest tenth of a second?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
When the ball hits the ground, , so
Use quadratic formula
The ball hits the ground in 1.2 sec
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Get a 2nd opinion if needed.
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