Relative Motion

Two particles $%7BA%7D$ and $%7BB%7D$ , move with constant velocities $%5Cvec%7Bv%7D_1$ and $%5Cvec%7Bv%7D_2$ respectively. At the initial moment, their position vectors are $%5Cvec%7Br%7D_1$ and $%5Cvec%20r_2$ respectively. The conditions for particles $%7BA%7D$ and $%7BB%7D$ for their collision will be:

1.	$%5Cdfrac%7B%5Cvec%7Br%7D_1-%5Cvec%7Br%7D_2%7D%7B%5Cleft%7C%5Cvec%7Br%7D_1-%5Cvec%7Br%7D_2%5Cright%7C%7D%3D%5Cdfrac%7B%5Cvec%7Bv%7D_2-%5Cvec%7Bv%7D_1%7D%7B%5Cleft%7C%5Cvec%7Bv%7D_2-%5Cvec%7Bv%7D_1%5Cright%7C%7D$
2.	$%5Cvec%7Br%7D_1%20%5Ccdot%20%5Cvec%7Bv%7D_1%3D%5Cvec%7Br%7D_2%20%5Ccdot%20%5Cvec%7Bv%7D_2$
3.	$%5Cvec%7Br%7D_1%20%5Ctimes%20%5Cvec%7Bv%7D_1%3D%5Cvec%7Br%7D_2%20%5Ctimes%20%5Cvec%7Bv%7D_2$
4.	$%5Cvec%7Br%7D_1-%5Cvec%7Br%7D_2%3D%5Cvec%7Bv%7D_1-%5Cvec%7Bv%7D_2$

High-Yield Trend

Questions
2 MCQs

Official Solution

Official Solution

1.	$45%5E%7B%5Ccirc%7D$ west of north	2.	$30%5E%7B%5Ccirc%7D$ west of north
3.	$0%5E%7B%5Ccirc%7D$ west of north	4.	$60%5E%7B%5Ccirc%7D$ west of north

Relative Motion

High-Yield Trend

Questions 2 MCQs

Official Solution

Official Solution

Questions
2 MCQs