Posted by **jenny** on Tuesday, October 24, 2006 at 6:29pm.

A small ball rolls horizontally off the edge of a tabletop that is 1.2 m high. It strikes the floor at a point 1.52m horizontally away from the edge of the table. a) How long is the ball in the air? b) What is the speed at the instant it leaves the table?

I don't understand which equation I would use to solve this problem.

How long does it take to fall 1.2 m?

d= 1/2 g t^2.

solve for time.

Now, that is the same time it took to go 1.52 m horizontally, solve for speed.

wow - so obvious lol, thank you bob ;)

## Answer This Question

## Related Questions

- Physics - A small ball rolls horizontally off the edge of a tabletop of height h...
- Physics - A small ball rolls horizontally off the edge of a table that is 1.20 m...
- Physics - Projectile Motion - A ball rolls horizontally off the edge of a ...
- Math/Physics - A ball rolls horizontally off the edge of a tabletop that is 1.60...
- Physics - A ball rolls horizontally off the edge of a tabletop that is 1.80 m ...
- physics - A ball rolls horizontally off the edge of a tabletop that is 1.0m high...
- physics - a ball rolls off the edge of a tabletop 1m above the floor and strikes...
- physics - a ball rolls off the edge of a tabletop 1m above the floor and strikes...
- college physics - tennis ball rolls off the edge of a tabletop 0.900m above the...
- physics - A tennis ball rolls off the edge of a tabletop 0.800m above the floor ...

More Related Questions