A ball is projecte with a velocity 20 ms...

A ball is projecte with a velocity `20 ms^-1` at an angle to the horizontal. In order to have the maximum range. Its velocity at the highest position must be

`10 ms^-1`

`14ms^-1`

`18ms^-1`

`16ms^-1`

Text Solution

Verified by Experts

The correct Answer is:

At `45^@` , range is maximum. At highest point, it has only horizontal component of velocity or `20cos45^@ = 14 m//s` .

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