Two particles A and B are thrown simu ltaneously 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 b e true in respect of their motions?

Two particles A and B are thrown simu ltaneously from the same point a

1.	Two particles A and B are thrown simu ltaneously 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 b e true in respect of their motions?
Answer» The difference in their maximum heights is (2uv/g) They reach their maximum heights at a time interval of `(2u sin theta)//g` They will be separated by the distance of `((2uv sin 2theta)/(g))` when they reach the ground again They are never in the same HORIZONTAL LEVEL during their flights. SOLUTION :`t_(1)=(v+u)(sin theta)/(g)` and `t_(2)=((v-u)sintheta)/(g)` `therefore Deltat=t_(1)-t_(2)=(2u sin theta)/(g)`