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# Acceleration due to gravity

A cannonball is fired horizontally from the top of a cliff. The cannon is at height H = 50.0 m above ground level, and the ball is fired with initial horizontal speed v0. Assume acceleration due to gravity to be g = 9.80 m/s2 .1) Assume that the cannon is fired at time t=0 and that the cannonball hits the ground at time tg. What is the y position of the cannonball at the time tg/2?Answer numerically in units of meters.2) Given that the projectile lands at a distance D = 160 m from the cliff, as shown in the figure, find the initial speed of the projectile, v0.Express the initial speed numerically in meters per second.There is a part 3 however that isn’t revealed until part 1 and 2 have been completed. I would appreciate it if you could help me answer that as well after posting the answers and steps on how to obtain the answers to part 1 and 2

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