Some kinematics

[Arladerus]

A ball is dropped from a building. A second later, another ball is thrown down from the same building at 15m/s. The two balls hit the ground at the same time. How high is the building?

Is this equation correct;
(4.9m/s/s)t^2 = (4.9m/s/s)(t-1)^2 + (15m/s)(t-1)

? (And then after I find time I can just plug it into d = vt + 1/2at^2)

[Arladerus]

Nevermind, it’s right.

[tarheel91]

Isn’t physics lovely?

[Dest1]

/rage

[DarkDragoon]

Boy, if you’re going to ask a damn question don’t post a thread in the forum and then say, “I solved it” as your next post.
/rage

[David]

DarkDragoon said: Boy, if you’re going to ask a damn question don’t post a thread in the forum and then say, “I solved it” as your next post.
/rage

inorite.

damn fool

[Arladerus]

Notice I had three hours to think about it without you guys helping. Thanks for caring though.

I wonder how well I did on my test… :S

[David]

You know that forums sometimes don’t get any activity for 3 days.

[Author]

Posts