Two particles are projected with speeds `u_1` and `u_2` in mutually opposite directions from top of a tower horizontally. Find the time after which their velocity becomes perpendicular to each other.

A particle is projected with velocity u at angle theta with horizontal. Find the time when velocity vector is perpendicular to initial velocity vector.

A particle is projected with velocity u at angle theta with horizontal. Find the time when velocity vector is perpendicular to initial velocity vector.

A particle is projected with velocity u at angle theta with horizontal. Find the time when velocity vector is perpendicular to initial velocity vector.

Two particles are thrown horizontally in opposite directions with velocities u and 2u from the top of a high tower. The time after which their radius of curvature will be mutually perpendicular is

Two particles are thrown horizontally in opposite directions with velocities u and 2u from the top of a high tower. The time after which their radius of curvature will be mutually perpendicular is

Two particles are projected from a tower horizontally in opposite directions with velocities 10 m//s and 20 m//s . Find the time when their velocity vectors are mutually perpendicular. Take g=10m//s^2 .

Two particles are projected from a tower horizontally in opposite directions with velocities 10 m//s and 20 m//s . Find the time when their velocity vectors are mutually perpendicular. Take g=10m//s^2 .

A particle is projected from . the ground at an angle theta with the horizontal with an initial speed of ‘u’. Find the time after which velocity vector, of the projectile is perpendicular to the initial velocity

Two projectiles are projected horizontally from the same point in opposite directions with speed 5m/s . Find the separation in meter at the instant their velocities become mutually perpendicular (g=10m/ s^(2) ).

From an elevated point two bodies are projected horizontally in opposite direction with velocity "10m/s" each.Time after which their displacements are perpendicular to each other is g=10m/s^(2)