A simple pendulum is made of a small blob of mass m = 8.500 kg attached to the end of an inextensible wire. The angular amplitude of oscillation is θ = 11.46°.
Use g = 9.807 m/s² for the gravitational acceleration.
What is the magnitude T of the tension in the wire when the blob is directly below its point of support?
and I will say the answer isn't just the mass times the gravity