A ball of mass is tied to a string and moves on a horizontal circle of radius with…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A ball of mass m is tied to a string and moves on a horizontal circle of radius R with constant speed v on a horizontal table.
(a) Explain carefully why the tension force does zero work during a full revolution.
(b) How much work does it do in half a revolution?