two inclined planes OA and OB intersect in a horizontal plane having their inclinations "a" and "b" with horizontal.a particle is projected from point P with velocity "u" perpendicular to plane OA .the particle strike plane OB perpendicularly at Q.(1) if a=b=30 degrees, the time of flight from P to Q is?(2)if a=b=30 degrees and OP=4.9m, initial velocity of projection is ?

Jitender Pal , 10 Years ago

Grade 9