Test Academy | A particle P is projected with velocity u1 at an angle of 30° with the horizontal. Another particle Q is thrown vertically upwards with velocity u2 from a point vertically below the highest point of path of P. The necessary condition for the two particles to collide at the highest point is u1 = u2, u1 = 2u2, u1 = u2/2, u1 = 4u2

Question

A particle P is projected with velocity u1 at an angle of 30° with the horizontal. Another particle Q is thrown vertically upwards with velocity u2 from a point vertically below the highest point of path of P. The necessary condition for the two particles to collide at the highest point is

Options :

u1 = u2
u1 = 2u2
u1 = u2/2
u1 = 4u2

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