chetan jangir
Last Activity: 5 Years ago
Hey Liza I hope you know how to calculate torque ,Torque due to force about a point is Forcein perpendicular direction *(into)its perpenidular distance about that point (here A) SO we know equation of rotation motion torque net= I(moment of inertia)*angular acceleration .
(here
= angular acceleration) Calculating
=3g/2l
Here at A a tension acts but it’s torque is zero as it’s perdicular distance is zero and also it passes through A