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

Three particles are projected in the air with the minimum possible spe

1.	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
Answer» `u_(3)=u_(1)+u_(2)` `U(2)/(3)=2u_(1)u_(2)` `1/u_(3)=1/u_(1)+1/u_(2)` `u(2)/(3)=u(2)/(1)+u(2)/(2)` ANSWER :B

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