Posted by Elizabeth on Tuesday, May 22, 2012 at 11:46am.
A tennis ball is thrown horizontally at a speed of 10 m/s from the top of a building 78.4 meters high. How long does it take the ball to hit the street?

physics  drwls, Tuesday, May 22, 2012 at 11:49am
Hint:
The answer has nothing to do withe the 10 m/s horizontal velocity com[ponent.
Just calculate how long it takes for an object to fall 78.4 m
Y = (1/2) g t^2
(ignoring air resistance)
Solve for t.

physics  Damon, Tuesday, May 22, 2012 at 11:49am
Exactly as long as it takes to fall 78.4 meters since it had zero initial vertical velocity (only horizontal).
(1/2)(9.8) t^2 = 78.4
Answer This Question
Related Questions
 Physics  Ball A is thrown upward from the top of a building and takes 12 s to ...
 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, please help me, this question is hard  John Stands at the edge of a ...
 ap physics  a ball 1 is thrown horizontally from the top of a building that is ...
 Physics  A tennis ball is struck such that it leaves the racket horizontally ...
 Physics  Standing on the top ledge of a 55 m high building you throw a ball ...
 Physics  The ball is thrown upward with a speed of 38.0m/s from the top of a ...
 college physics  a tennis ball is thrown straight up with an initial velocity ...
More Related Questions