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Posted by on Sunday, January 30, 2011 at 2:20pm.

A ball is thrown horizontally from the top of a building 55.4 m high. The ball strikes the ground at a point 65 m from the base of the building.
The acceleration of gravity is 9.8 m/s2 .
Find the time the ball is in motion in seconds.

  • Physics - , Sunday, January 30, 2011 at 2:38pm

    hf=hi+vi*t-4.9t^2

    solve for time.

  • Physics - , Sunday, January 30, 2011 at 3:01pm

    how do i solve for time when i don't know initial velocity?

  • Physics - , Tuesday, December 16, 2014 at 8:03pm

    dy(height)=1/2 times acceleration due to gravity(9.81) times time squared

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