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In a projectile motion let `t_(OA)=t_(1)` and `t_(AB)=t_(2)`.The horizontal displacement from `O` to `A` is `R_(1)` and from `A` to `B` is `R_(2)`.Maximum height is `H` and time of flight is `T`.If air drag is to be considered, then choose the correct alternative(s). A. `t_(1)` will decrease while `t_(2)` will increaseB. H will increaseC. `R_(1)` will decrease while `R_(2)` will increaseD. T may increase or decrease |
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Answer» Correct Answer - A::D As air drag reduces the vertical component of velocity so time to reach maximum height will decrease and it will decrease the downward vertical velocity hence time to fall on earth increases. |
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