Homework Help: physics

Posted by corinne on Thursday, October 30, 2008 at 9:35pm.

a man throws a rock horizontally off a building with an initial velocity of 22.4 m/s. it hits the ground 91.6 m from the building. how tall is the building? (positive value)

physics - drwls, Thursday, October 30, 2008 at 11:10pm
91.6 m / 22.4 m/s = 4.09s is the time it takes to hit the ground. Call it T.

(1/2) g T^2 = height, H
Solve that for H

Answer this Question

Related Questions

physics - A balloon carrying a basket is descending at a constant velocity of 20...
Physics - A man stands on the roof of a 19.0 m-tall building and throws a rock ...
physics - a man stands on the roof of a building that is 30m tall and throws a ...
physics - A man stands on the roof of a 19.0 m-tall building and throws a rock ...
Physics - A boy stands on the edge of a building 7 meters high and throws a rock...
physics - A man stands on the roof of a 10.0 -tall building and throws a rock ...
physics - A man stands on the roof of a 10.0 -tall building and throws a rock ...
Physics - A man stands on the roof of a 10.0 -tall building and throws a rock ...
Physics help again! - A ball is thrown horizontally off a 35 m tall building. It...
physics - A man stands on the roof of a 10.0 -tall building and throws a rock ...

For Further Reading

First Name:
School Subject:
Answer: