Q. An object is resting at the bottom of two strings which are inclined at an angle of $120^{\circ}$ with each other. Each string can withstand a tension of $20\, N$. The maximum weight of the object that can be supported without breaking the string is
Laws of Motion
Solution:
$W=2 T \cos 60^{\circ}$
$W_{\max }=2 T_{\max } \cos 60^{\circ}$
$=2(20 N )\left(\frac{1}{2}\right)=20 N$
