Posted by kathryn on Wednesday, November 7, 2012 at 11:40am.
doesn't matter how long it takes to hit the ground.
s = 1/2 at^2 = 4.9t^2
s(1) = 4.9
s(2) = 19.6
How did you get 9.8 for s(1)? Curious, since you got s(2) correct. Ah. you must have used 9.8t, rather than 4.9t^2.
The speed is 9.8t. Better review those formulas some more.
Related Questions
physics - If an object is dropped from a tall building and hits the ground 3.0 s...
physics - If an object is dropped from a tall building and hits the ground 3.0 ...
physics - A stone is dropped from the roof of a tall building. A person measures...
science - An object is dropped off of a 27 meter tall building. How long is it ...
physics - a tennis ball is dropped from the top of 12.2 m tall building. b) how ...
Applied Physics - An object is dropped from a height of 49 meters. The object ...
engineering physics - An object of mass m is dropped at t=0 from the roof of a ...
physics - A tennis ball is dropped from the top of a building. It falls for 2.5 ...
physics - a man throws a rock horizontally off a building with an initial ...
Physics - A baseball is dropped from a tall building and takes 4.1 seconds to ...
For Further Reading
