8. Centripetal Forces & Gravitation
Centripetal Forces
8. Centripetal Forces & Gravitation Centripetal Forces
11PRACTICE PROBLEM
A binder clip of mass 2 g is placed 6 cm from the axis of rotation of a spin coater. The coefficient of static and kinetic friction between the binder clip and the spin coater surface is µs =0.95 and µk = 0.64, respectively. The spin coater starts from rest and accelerates until it reaches a speed of 20 rpm. Identify the maximum angular velocity, and determine whether the binder clip will stay on the spin coater or slide off.
A binder clip of mass 2 g is placed 6 cm from the axis of rotation of a spin coater. The coefficient of static and kinetic friction between the binder clip and the spin coater surface is µs =0.95 and µk = 0.64, respectively. The spin coater starts from rest and accelerates until it reaches a speed of 20 rpm. Identify the maximum angular velocity, and determine whether the binder clip will stay on the spin coater or slide off.