Question

which of the following are true for an ideal pendulum consisting of a mass oscillating back and forth on a light string? (Choose all that apply.)

Answer 1

Only (B) is true

Max force occurs at bottom of motion because the centripetal acceleration is a maximum where the velocity is greatest

KE + PE = constant each of the two vary from zero to max

angular acceleration depends of the displacement

tangential acceleration depends on v^2 / r which happens to be g at the bottom of the motion