1.

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)` isA. 20.62B. 10.31C. 41.14D. 5.15

Answer» Correct Answer - 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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