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A catapult launches a ball from ground level with an initial velocity of v = 40...

A catapult launches a ball from ground level with an initial velocity of v = 40 m/s at 30◦ to the horizontal. What is its height above the ground level at the moment in its flight that its speed is least?

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Answer #1

minimum velocity is at max height

h = vy^2 / 2g

h = (40 sin 30)^2 / 19.6

h = 20.408 m

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