Homework Help Forum: 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

First Name:
School Subject:
Answer: