A ball A collides elasticlly with an another identical bass B with velocity 10 m//s at an angle of `30^(@)` from the line joining their centres `C_(1)` and `C_(2)` Select the correct alternative (s).

A ball A moving with a velocity 5 m/s collides elastically with another identical ball at rest such that the velocity of A makes an angle of 30^(@) with the line joining the centres of the balls. Then consider following statements : (A) Balls A an B move at right angles after collision (B) kinetic energy is conserved (C) speed of A after collision is (5/2) m/s (D) speed of B after collision is ( 5sqrt(3)//2 ) m/s Select correct alternative :-

A ball A moving with a velocity 5 m/s collides elastically with another identical ball at rest such that the velocity of A makes an angle of 30^(@) with the line joining the centres of the balls. Then consider following statements : (A) Balls A an B move at right angles after collision (B) kinetic energy is conserved (C) speed of A after collision is (5/2) m/s (D) speed of B after collision is ( 5sqrt(3)//2 ) m/s Select correct alternative :-

A ball A moving with a velocity 5 m/s collides elastically with another identical ball at rest such that the velocity of A makes an angle of 30^(@) with the line joining the centres of the balls. Then consider following statements : (A) Balls A an B move at right angles after collision (B) kinetic energy is conserved (C) speed of A after collision is (5/2) m/s (D) speed of B after collision is ( 5sqrt(3)//2 ) m/s Select correct alternative :-

A smooth sphere A of mass m collides elastically with an identical sphere B at rest. The velocity of A before collision is 8 m//s in a direction making 60^(@) with the line of centres at the time of impact.

A smooth sphere A of mass m collides elastically with an identical sphere B at rest. The velocity of A before collision is 8 m//s in a direction making 60^(@) with the line of centres at the time of impact, Then

A smooth sphere A of mass m collides elastically with an identical sphere B at rest. The velocity of A before collision is 8 m//s in a direction making 60^(@) with the line of centres at the time of impact.

A football player throws a ball with a velocity of 50 m//s at an angle 30 degrees from the horizontal. The ball remains in the air for (g = 10m//s^(2))