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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