Homework Help: Physics(urgent)

Posted by Mo on Thursday, October 1, 2009 at 5:18pm.

A ball is thrown horizontally from the roof of a building 58.5 m tall and lands 38.7 m from the base. What was the ball's initial speed in m/s?
Hint: Find the horizontal velocity by calculating the time of flight and using the horizontal distance.

Physics(urgent) - bobpursley, Thursday, October 1, 2009 at 5:21pm
how long was it in the aIr?

h(f)=h(o)+vv*time - 4.9 t^2
-58.8=0+0-4.9t^2
solve for t.

now in the horizontal, you have the time, the distance, solve for the initial velocity
d=v*t

Answer this Question

Related Questions

Physics - A ball thrown horizontally at 18.3 m/s from the roof of a building ...
Physics - A ball is thrown horizontally from the roof of a building 55 m tall ...
physics - A ball is thrown horizontally from the roof of a building 59.0 tall ...
physics - A ball is thrown horizontally from the roof of a building 33.0 m tall ...
physics - A ball thrown horizontally at 17.0 m/s from the roof of a building ...
physics - A ball is thrown horizontally from the roof of a building 60 m tall ...
physics - A ball thrown horizontally at 22.3 m/s from the roof of a building ...
Physics - A ball thrown horizontally at 22.3 m/s from the roof of a building ...
high school physics - a ball is thrown hirizontally from the roof of a building ...
Physics - A ball is thrown horizontally from the roof of a building 9.0 m tall ...

For Further Reading

First Name:
School Subject:
Answer: