Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: trajectory times

Learn more physics!

Most recent answer: 02/11/2013
I have a question that I am confused about. A rock is propelled upward from the earth with an initial velocity of 60 m/s. It will return to earth in approximately 12s is the answer that was given for this question. If the equation for velocity is v=a X t and "a" is the constant 9.8 m/second squared how is the answer 12s instead of 6s?
- Mel
First up, then down.

Mike W.

(published on 02/11/2013)

Follow-up on this answer.