1. Tardigrade
  2. Question
  3. Physics
  4. In the figure shown, both the blocks are released from rest. The time (in s) to cross each other is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. In the figure shown, both the blocks are released from rest. The time (in $s$) to cross each other isPhysics Question Image

Laws of Motion

Solution:

$4 g-T=4 a$
$T-g=a$
$3 g=5 a$
$\Rightarrow a=\frac{3 g}{5}$
Relative acceleration $=\frac{6 g}{5}$
By second equation of motion,
$s=u t+\frac{1}{2} a t^{2}$
$6=\frac{1}{2} \times \frac{6 g}{5} \times t^{2} $
$\Rightarrow t^{2}=1 $
$\Rightarrow t=1 \,s (\because u =0)$