Two particles are projected simultaneously with the same speed `v` in the same vertical plane with angles of elevation `theta`, and `2theta`, where `theta lt 45^(@)`.At what time will velocities be parallel?

Two particles are projected simultaneously with same speed V_0 in same vertical plane at angle 30^@ and 60^@ With the horizontal .The time at which their velocities becomes parallel is

Two particles are projected simultaneously with same speed V_0 in same vertical plane at angle 30^@ and 60^@ With the horizontal .The time at which their velocities becomes parallel is

Two particles are projected simultaneously in the same vertical plane, with speed u_(1) and u_(2) at angle of projection theta_(1) and theta_(2) respectively with the horizontal. The path followed by one, as seen by other (as long as both are in flight), is

Two particles are projected simultaneously in the same vertical plane, from the with speed u_(1) and u_(2) at angle of projection theta_(1) and theta_(2) respectively with the horizontal. The path followed by one, as seen by other (as long as both are in flight), is

A particle is projected at an angle theta with an initial speed u .

Two particles are projected simultaneously with the same initial velocity u at angles theta_1 and theta_2 with respect to the horizontal , but in opposite directions. If their paths are coplaner, what is the magnitude of their relative velocity at the time of projection ?

Two particles are simultaneously projected in the same vertical plane from the same point with velocities u and v at angles alpha and beta with horizontal. Find the time that elapses when their velocities are parallel.

Two particles are simultaneously projected in the same vertical plane from the same point with velocities u and v at angles alpha and beta with horizontal. Find the time that elapses when their velocities are parallel.

Two particles are projected with same speed but at angles of projection (45^(@)-theta) and (45^(@)+theta) . Then their horizontal ranges are in the ratio of