Question

In fig. Blocks A and B move with velocities $v_1$ and $v_2$ along horizontal direction. Find the ratio of $v_1/v_2$.

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

From fig. $l_1+l_2=Cor\frac{d{l}_1}{dt}+\frac{d{l}_2}{dt}=0$

$-v_{1}cos{\theta }_1+v_{2}cos{\theta }_2=0$ or $\frac{v_1}{v_2}=\frac{cos{\theta }_2}{cos{\theta }_1}$