If a hockeypuck slides on a perfectly frictionless surface, it will eventually slow down because of its inertia.

Question

Is this true or false

Answer 1

Newton's First Law, the Law of Inertia, states:

• An object at rest will remain at rest unless acted upon by an external force
• An object moving in a straight line at constant speed will remain moving in a straight line at constant speed unless acted upon by an external force

 

Hence inertia is the property of NOT changing your state of motion unless acted upon by a force.