In case of a vertically up thrown body, the speed of the body while moving up …………..

The body will speed up if .

The body will speed up if .

A body P is thrown vertically up with velocity 30 ms^(-1) and another body Q is thrown up along the same vertically line with the same velocity but 1 second later from the ground. When they meet (g = 10 ms-2)

A body is projected vertically up from ground with a speed sqrt(gh) . The average speed of total motion is