Question

If block A has the velocity of $0.6m/s$ to the right, determine the velocity of block B

Answer 1

we will solve it with the help of constraints equation

As we can see, a string is attached with block $A$, and three string is folded with ply which is attached with $B$

$x_B=3x_A$

Now differentiate with respect to $x$

$V_B=3V_A$

Given,

$V_A=0.6m/s\left(totheright\right)$

So,

$\begin{array}{c}{V}_B=0.6\times 3\\ =1.8m/s\left(downward\right)\end{array}$