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October 1, 2014

October 1, 2014

Posted by **Maria** on Monday, September 24, 2012 at 9:35pm.

a building with an initial velocity of 16.3 m/s

at an angle of 39

◦

above the horizontal. The

rock strikes the ground a horizontal distance

of 90 m from the base of the building.

The acceleration of gravity is 9.8 m/s

2.

Assume: The ground is level and that the

side of the building is vertical. Neglect air

friction.

What is the horizontal component of the

rock’s velocity when it strikes the ground?

Answer in units of m/s

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