# A man stands on the roof of a building of height 13.7m and throws a rock with a velocity of magnitude 28.0m/s at an angle of 27.5 degrees above the horizontal. A. calculate the maximum height above...

A man stands on the roof of a building of height 13.7m and throws a rock with a velocity of magnitude 28.0m/s at an angle of 27.5 degrees above the horizontal.

A. calculate the maximum height above the roof reached by the rock. Answer in m

B. Calculate the magnitude of the velocity of the rock just before it strikes ground.  Answer in m/s

C. Calculate the horizontal distance from the base of the building to the point where the rock strikes the ground. Answer in m

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A man stands on the roof of a building of height 13.7 m and throws a rock with a velocity of magnitude 28.0 m/s at an angle of 27.5 degrees above the horizontal.

The maximum height that the projectile reaches is given by (v*sin x)^2/2*g where v is the initial velocity and x is the angle made with the horizontal. Substituting the values from the problem the maximum height is (28*sin 27.5)^2/19.6 = 8.528 m. But the rock is thrown from the top of a...

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