(Solved): PHYSICS 20. LABORATORY 3: UNIFORM CIRCULAR MOTION PURPOSE To verify the relationship between force ...

PHYSICS 20. LABORATORY 3: UNIFORM CIRCULAR MOTION PURPOSE To verify the relationship between force acting on an object in uniform circular motion and the object's frequency (period), mass, speed and path radius. QUESTION What is the mass of the hanging/sliding metal bob of the apparatus? BACKGROUND An object in uniform circular motion has constant speed while traveling in a circle. Even though such an object moves with constant speed, it has acceleration because its velocity vector is continuously changing its direction. According to Newton's 2 nd Law, a net external force is responsible for the acceleration: