February 28, 2017

Homework Help: physics

Posted by lina on Monday, September 14, 2009 at 11:06pm.

A man stands on the roof of a 19.0 m-tall building and throws a rock with a velocity of magnitude 30.0 m/sat an angle of 42.0 degrees above the horizontal. You can ignore air resistance.

Calculate the maximum height above the roof reached by the rock.

Calculate the magnitude of the velocity of the rock just before it strikes the ground.

Calculate the horizontal distance from the base of the building to the point where the rock strikes the ground.

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