Please see the attachment. What is the most straight forward way to solve it? Please provide explanations for the major steps.
USE OF EQUATION OF MOTION IN TERMS OF RADIAL AND TRANSVERSE DIRECTIONS
a.) Because along the radial direction:
Tension in the cord:
T = m*r*Q_dot^2
Read Q as theta.
Q_dot == theta dot = d(Q)/dt = 10t rad/s
The cord will break when T = 18 N
This solution describes in 176 words how to find the acceleration and force through using the equation of motion, tension, and time.