A body is thrown vertically upwards at 4...

A body is thrown vertically upwards at 40 `"m.s"^(-1)` . After sometime the body returns to the initial point at the same speed. Average velocity of the body for the motion is

45 `"m.s"^(-1)`

40 `"m.s"^(-1)`

48 `"m.s"^(-1)`

zero

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