Two balls 𝐴 and 𝐵 are thrown simultaneously from the top of a tower. 𝐴 is thrown vertically up with a speed of 4ms −1 . 𝐵 is thrown vertically down with a speed of 4 ms −1 . The ball 𝐴 and 𝐵 hit the ground with speed 𝑣𝐴 and 𝑣𝐵 respectively. Then

Question : Two balls 𝐴 and 𝐵 are thrown simultaneously from the top of a tower. 𝐴 is thrown vertically up with a speed of 4ms −1 . 𝐵 is thrown vertically down with a speed of 4 ms −1 . The ball 𝐴 and 𝐵 hit the ground with speed 𝑣𝐴 and 𝑣𝐵 respectively. Then