Question

 A christmas decorations of three identical balls, each with mass of 0.15kg, was hung as shown below. (a) Draw FBD (b) Find the tension of each string supporting each ball.

Answer 1

$T_1=mg=0.15\cdot9.8=1.47\ (N)$

$T_2=2mg=2\cdot0.15\cdot9.8=2.94\ (N)$

$T_3=3mg=3\cdot0.15\cdot9.8=4.41\ (N)$