A simple pendulum of length and mass is initially at its lowest position
PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A simple pendulum of length l and mass m is initially at its lowest position. It is given the minimum horizontal speed necessary to move in a circular path about the point of suspension. The tension in the string at the lowest position of the bob is
(1) 3mg
(2) 4mg
(3) 5mg
(4) 6mg