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A body is projected up such that its pos...

A body is projected up such that its position vector varies with time as `barr=6t hati+(8t-5t^(2))hatj. `Find the (a) initial velocity (b) time of fight.

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To solve the problem, we need to analyze the position vector given and derive the required quantities step by step. ### Given: The position vector of the body is given by: \[ \vec{r} = 6t \hat{i} + (8t - 5t^2) \hat{j} \] ...
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