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A particle is projected from ground at a...

A particle is projected from ground at an angle `45^(@)` with initial velocity `20sqrt2 ms^(-1)`.The magnitude of average velocity in a timer interval from `t=0` to `t=3 s` in `ms^(-1)` is

A

20.62

B

10.31

C

41.14

D

5.15

Text Solution

Verified by Experts

The correct Answer is:
A
`u_(i)=u_(x)i+u_(y)j`
`u_(f)=u_(x)i+(u_(y)-"gt")j,V_(avg)=(u_(i)+u_(f))/2`
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