Posted by **Tammy** on Wednesday, September 26, 2007 at 2:28pm.

a ball thrown horizontally from a point 40m above the ground,strikes the ground after traveling a distance of 9m. with what speed was it thrown? use g=10m/s^2

first i need to find the time so I used y=y_0 +v_0t +1/2at^2

-40=-1/2(10)t^2

t=8s

then x=x_o+vt

9=v(8)

v=1.125m/s

Is this correct?

## Answer This Question

## Related Questions

- Physics - A ball thrown horizontally from a point 26.0 m above the ground ...
- Physics - Two students are on a balcony a distance h above the S street. One ...
- Physics Help Please!!!! - a pitcher throws a softball horizontally from a height...
- Physics Help Please!!!! - a pitcher throws a softball horizontally from a height...
- physics - A ball is thrown horizontally from the top of a building 150 meters ...
- physics - A ball is thrown horizontally from the top of a building 150 meters ...
- physics - A ball is thrown horizontally from the top of a building 150 meters ...
- Physics - A rock is thrown vertically upward with a speed of 12.0 from the roof ...
- Physics - A red ball is thrown down with an initial speed of 1.2 m/s from a ...
- physics - A ball is thrown from the top of a building upward at an angle of 66...

More Related Questions