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^6`)
A)10s
B)4s
C)2s
D)3s

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 trains, each 50 m long are travelling in opposite direction with velocity 10 m/s and 15 m/s. The time of crossing is

From a tower of height 40 m , two bodies are simultaneously projected horizontally in opposite direction, with velocities 2 m s^-1 and 8 ms^-1 . respectively. The time taken for the displacement vectors of two bodies to be come perpendicular to each other is.

From a tower of height 40 m , two bodies are simultaneously projected horizontally in opposite direction, with velocities 2 m s^-1 and 8 ms^-1 . respectively. The time taken for the velocity vectors of two bodies to become perpendicular to each other is :

From a tower of height 40 m , two bodies are simultaneously projected horizontally in opposite direction, with velocities 2 m s^-1 and 8 ms^-1 . respectively. The horizontal distance between two bodies, when their velocity are perpendicular to each other, is.

A body is projected horizontally from the top of a tower with a velocity of 30 m/s. The velocity of the body 4 seconds after projection is (g = 10ms^(-2) )

A body is projected with an initial elocity 20m/s at 60° to the horizontal. The displacement after 2 s is

A particle is projected from ground with velocity 40(sqrt2) m//s at 45^@ . Find (a) velocity and (b) displacement of the particle after 2 s. (g = 10 m//s^2)

A particle is projected vertically upwards with an initial velocity of 40 m//s. Find the displacement and distance covered by the particle in 6 s. Take g= 10 m//s^2.

A particle is projected vertically upwards with velocity 40m//s. Find the displacement and distance travelled by the particle in (a) 2s (b) 4s (c) 6s Take g=10 m//s^2