Posted by Eva on .
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,
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 
Eva,
What is g? The acceleration in m/s^2?

Physics 
bobpursley,
g= 9.8m/s^2

Physics 
help me D:,
How do you get rid of t^2

Physics 
:),
Square root.

Physics 
milkias,
a ball rolls off an 80cm high table & lands 1.2m a long the floor (g=10m/s.s) find total time?