A particle is projected vertically upwards from O with velocity v and a second particle is projected at the same instant from P ( at a heighth above O) with velocity v at an angle of projection theta. The time when the distance between them is minimum h/kv. where 'k' is

A particle is projected vertically upwards from O with velocity v and

1.	A particle is projected vertically upwards from O with velocity v and a second particle is projected at the same instant from P ( at a heighth above O) with velocity v at an angle of projection theta. The time when the distance between them is minimum h/kv. where 'k' is
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