Posted by **sushma** on Wednesday, July 11, 2012 at 7:17am.

A stone is thrown vertically upward with a speed of 15m/s.what is the acceleration of the stone in its highest point of its motion?

- physics -
**drwls**, Wednesday, July 11, 2012 at 8:11am
The acceleration is

a = -g = -9.8 m/s^2

at all times the stone is in the air.

It does not depend upon the initial thrown velocity.

The minus sign is there because the acceleration is in a downward direction.

- physics -
**Elena**, Wednesday, July 11, 2012 at 8:13am
Acceleration is "g" at each point of the trajectory

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