A cannon on top of a 75 m cliff shoots a cannonball at a velocity of 125 m/s at an angle of 60°. (a) What is the initial velocity in the x and y direction. (b) How long does it take the cannonball to reach it's maximum height? (c) How far does the cannonball travel in the x direction?
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- Suppose I throw a rock horizontally with an initial speed of 30 m/s. Suppose my release point is 2 m above the ground. (a) How long does it take for the rock to hit the ground? (b) How far in the horizontal direction does the rock travel? (c) What is the speed of the rock right before it hits the ground?A rock is thrown horizontally with a speed of 20 m/ s from a vertical cliff of height 25 m. (a) Draw a sketch showing initial velocity of rock and vertical and horizontal displacement. (b) What are x and y components of initial velocity? (c) What are x and y components of acceleration? (d) How long does it take the rock to reach the horizontal ground below? (e) How far will it land from the base of the cliff?From the edge of a high cliff overlooking a flat valley, you shoot a cannonball horizontally over the valley with an initial speed of 120 m/s. If the cliff is 400 m above the valley floor, how far does the cannonball travel in the horizontal direction before landing on the ground?
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