See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Velocity of image of particle B B ˆ ˆ ˆ v 5( ) 4( ) i i i     velocity of image of particle A A ˆ ˆ ˆ v 10( ) 4( ) 10j      i i ˆ 14( ) 10 j    i Relative velocity of image BA B A V V V   ˆ ˆ ˆ 14( ) 10j        i i ˆ ˆ 15 10 j  i + BA | V | 325cm/sec 