A body of weight $2\, kg$ is suspended as shown in the figure. The tension ${T_1}$ in the horizontal string (in kg wt) is
$2/\sqrt 3 $
$\sqrt 3 /2$
$2\sqrt 3 $
$2$
Describe Galileo’s experiment of inclined plane regarding motion.
Write different type of common forces.
Write similarity and difference between contact force and field force.