How high does she rise during this interval

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Q. A cannon shoots a ball with an initial velocity of 152-m/s and a launch angle of 62°. The gravitational acceleration is 9.80 m/s2. Assuming no air resistance, how long would the cannonball stay in the air?

Q. A 31.00 kg girl is bouncing on a trampoline. All through a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 195J from 435J. How high does she rise during this interval? Avoid air resistance.

Reference no: EM1385279

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