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A stone is projected with a velocity 20s...

A stone is projected with a velocity `20sqrt2 m//s` at an angle of `45^(@)` to the horizontal.The average velocity of stone during its motion from starting point to its maximum height is

A

`10 sqrt(5)` m/s

B

`20 sqrt(5)` m/s

C

`5 sqrt(5)` m/s

D

20 m/s

Text Solution

Verified by Experts

The correct Answer is:
A
`v=(u)/(2) sqrt(1+3 cos^(2) theta)`
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