Posted by **Eva** on Thursday, May 1, 2008 at 8:29pm.

A small ball rolls horizontally off the edge of a table that is 1.20 m high. It strikes the floor at a point 1.52 m horizontally from the table edge. How long is the ball in the air? What is the velocity of the ball when it hits the floor?

- Physics -
**bobpursley**, Thursday, May 1, 2008 at 8:33pm
It fell 1.20m.

1.20= 1/2 g time^2 solve for time in air.

Velocity? Its intial horizontal veloicty must have been 1.52/timeinair.

So, take the falling final velocity (v= g t), add it to the horizontal velocity as a vector at 90 degrees, and you have the velocity at the floor.

- Physics -
**bobpursley**, Friday, May 2, 2008 at 6:34am
g= 9.8m/s^2

- Physics -
**help me D:**, Thursday, September 27, 2012 at 7:26pm
How do you get rid of t^2

- Physics -
**:)**, Thursday, September 27, 2012 at 9:58pm
Square root.

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