Question

38. Two particles A and B are thrown simultaneously from the
same point at the same angle of projection but with the two
different initial velocities (v + u) and (v-u) respectively
Which of the following statements will be true in respect of
their motions?
(a) The difference in their maximum heights is (uu/g)
(b) They reach their maximum heights at a time interval of
(2u sin )/g
(2uusin 20
(c) They will be separated by the distance of
when they reach the ground again
(d) They are never in the same horizontal level during their
flights
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Answer 1

Answer:

they reach their maximum height at a time interval of (2u since) /g

(2uusin 20