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A baseball of mass m is thrown vertically upward from a height r=0 with a speed...

A baseball of mass m is thrown vertically upward from a height r=0 with a speed of 20 meters/sec. The gravitational force on the baseball has a magnitude mg (m = mass, g=9.8 meters/sec2 is the acceleration due to gravity) and is directed downwards. Using Newton's second law, calculate the ball's height as a function of time and from that expression the maximum height of the ball.

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at time 2o m By Newttom ed secund aw 2 h= 20女-4-ge- Irms Anal velociy s usud o S= 20 , 41 meter

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