A ball of mass `m` is thrown at an angle of `45^(@)` to the horizontal,, from the top of a `65 m` high tower `AB` as shown in Fig. at `t = 0`. Another identical ball is thrown with velocity `20 m//s` horizontally towards `AB` from the top of a `30 m` high tower `CD 1 s` after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air,

the distance `AC` is

A ball of mass m is thrown at an angle of 45^(@) to the horizontal,, from the top of a 65 m high tower AB as shown in Fig. at t = 0 . Another identical ball is thrown with velocity 20 m//s horizontally towards AB from the top of a 30 m high tower CD 1 s after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air, . the velocity of combined ball just after they struck together is

A ball of mass m is thrown at an angle of 45^(@) to the horizontal,, from the top of a 65 m high tower AB as shown in Fig. at t = 0 . Another identical ball is thrown with velocity 20 m//s horizontally towards AB from the top of a 30 m high tower CD 1 s after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air, . the velocity of combined ball just after they struck together is

A ball of mass m is thrown at an angle of 45^(@) to the horizontal,, from the top of a 65 m high tower AB as shown in Fig. at t = 0 . Another identical ball is thrown with velocity 20 m//s horizontally towards AB from the top of a 30 m high tower CD 1 s after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air, the two balls will collide at time t =

A ball of mass m is thrown at an angle of 45^(@) to the horizontal,, from the top of a 65 m high tower AB as shown in Fig. at t = 0 . Another identical ball is thrown with velocity 20 m//s horizontally towards AB from the top of a 30 m high tower CD 1 s after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air, the two balls will collide at time t =

A ball of mass m is thrown at an angle of 45^(@) to the horizontal,, from the top of a 65 m high tower AB as shown in Fig. at t = 0 . Another identical ball is thrown with velocity 20 m//s horizontally towards AB from the top of a 30 m high tower CD 1 s after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air, the height from the ground where the two balls will collide is

A ball of mass m is thrown at an angle of 45^(@) to the horizontal,, from the top of a 65 m high tower AB as shown in Fig. at t = 0 . Another identical ball is thrown with velocity 20 m//s horizontally towards AB from the top of a 30 m high tower CD 1 s after the projection of the first ball. Both the balls move the same vertical plane. If they collide in mid-air, the height from the ground where the two balls will collide is

A ball is thrown with speed 40 m//s at an angle 30^(@) with horizontally from the top of a tower of height 60 m . Choose the correct option

A ball is thrown with velocity 40 m//s at angle 30^(@) with horizontal from the top of a tower of height 60 m . At what horizontal distance from the foot of tower, the ball will strike the gorund ?

A ball is dropped from the top of an 80 m high tower After 2 s another ball is thrown downwards from the tower. Both the balls reach the ground simultaneously. The initial speed of the second ball is

A ball is dropped from the top of a tower.prove that,the height of the tower is 20m if the ball reaches the ground with a velocity 20 m//s .