Two particles are simultaneously projected in opposite directions horizontally from a given point in space where gravity g is uniform. If `u_(1)` and `u_(2)` be their initial speeds, then the time t after which their velocitites are mutually perpendicular is given by

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 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) ).

Two particles move in a uniform gravitational field with an acceleration g .At the initial moment the particles were located at same point and moved with velocities u_(1)=9 ms^(-1) and u_(2)=4 ms^(-1) horizontally in opposite directions.The time between the particles at the moment when their velocity vectors are mutually perpendicular in s in (take g=10 ms^(-2) )

Two particles are simultaneously projected in the horizontal direction from a point P at a certain height. The initial velocities of the particles are oppositely directed to each other and have magnitude v each. The separation between the particles at a time when their position vectors (drawn from the point P are 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 with speed u at angle theta with horizontal from ground . If it is at same height from ground at time t_(1) and t_(2) , then its average velocity in time interval t_(1) to t_(2) is

A particle is projected with speed u at angle theta with horizontal from ground . If it is at same height from ground at time t_(1) and t_(2) , then its average velocity in time interval t_(1) to t_(2) is

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