Two shells are fired from cannon with speed `u` each, at angles of `alpha` of `beta` respectively with the horizontal.The time interval between the shots is `T`.They collide in mid air after time `t` from the first shot.Which of the following conditions must be satisfied?

Two shells are fired from a cannon with a speed u each, at angles of alpha and beta respectively to the horizontal. The time interval between the shots is T. they collide in mid-air after time t from the first shot. Which of the following conditions must be satisfied ?

Two shells are fired from a cannot with a speed u each, at angles of alpha and beta respectively to the horizontal. The time interval between the shots is T. they collide in mid-air after time t from the first shot. Which of the following conditions must be satisfied ?

Two shells are fired from a canon with seped (u) each, at angles if alpha and beta respectively with the horizontal . The time intrval between the shots is (t). They collide in mid air after time (T) from the first shot . Which of the following consitions must be satisfied ?

A body of mass m is projected with intial speed u at an angle theta with the horizontal. The change in momentum of body after time t is :-

A body of mass m is projected with intial speed u at an angle theta with the horizontal. The change in momentum of body after time t is :-

A body of mass m is projected with intial speed u at an angle theta with the horizontal. The change in momentum of body after time t is :-

Two shots are projected from a gun at the top of a hill with the same velocity u at angles of projection alpha and beta respectively. If the shots strike the horizontal ground through the foot of the hill at the same point, show that the height h of the hill above the plane is given by : h = (2u^(2)(1-tan alpha tan beta))/(g(tan alpha+tan beta)^(2))

Suppose two particles 1 and 2 are projected in vertical plane simultaneously. Their angles of projection are 30^@ and theta , respectively, with the horizontal. Let they collide after a time t in air. Then .

Suppose two particles 1 and 2 are projected in vertical plane simultaneously. Their angles of projection are 30^@ and theta , respectively, with the horizontal. Let they collide after a time t in air. Then .