Question : A particle is projected with a velocity 200 ms−1 at an angle of 60°. At the highest point, it explodes into three particles of equal masses. One goes vertically upwards with a velocity 100 ms −1 , the second particle goes vertically downwards. What is the velocity of third particle?
(A) 120ms^{-1} making 60° angle with horizontal
(B) 200ms^{-1} making 60° angle with horizontal
(C) 300ms^{-1}
(D) 2O0ms^{-1}
Answer : option (C)
Solution :
