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Three particles are projected in the air...

Three particles are projected in the air with the minimum possible speeds, such that the first goes from A to B, the second goes from B to C and the third goes from C to A. Points A and C are at the same horizontal level. The two inclines make the same angle `alpha` with the horizontal, as shown. The relation among the projection speeds of the three particles is

A

`u_(3)=u_(1)+u_(2)`

B

`u(2)/(3)=2u_(1)u_(2)`

C

`1/u_(3)=1/u_(1)+1/u_(2)`

D

`u(2)/(3)=u(2)/(1)+u(2)/(2)`

Text Solution

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The correct Answer is:
B
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