Question
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?
Answers
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.
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.
Eva
What is g? The acceleration in m/s^2?
bobpursley
g= 9.8m/s^2
help me D:
How do you get rid of t^2
:)
Square root.
milkias
a ball rolls off an 80cm high table & lands 1.2m a long the floor (g=10m/s.s) find total time?