Which of the following describes the relationship between friction and inertia?

When there is more friction, there is less inertia.
When there is less friction, there is more inertia.
When there is more friction, there is more inertia.
When there is no friction, there is more inertia.
Is the answer A?
Thank you

Or is it C? Im confused.

No, the correct answer is B: When there is less friction, there is more inertia.

Now, let's discuss how to arrive at this answer. First, let's understand what friction and inertia mean:

1. Friction: It is the force that opposes the motion between two surfaces in contact. Friction can slow down or stop the movement of an object.

2. Inertia: It is the resistance of an object to changes in its state of motion. Inertia is directly related to an object's mass, meaning objects with more mass have more inertia.

Now, let's analyze the options given:

A. When there is more friction, there is less inertia: This statement is incorrect. Friction and inertia have an indirect relationship, meaning an increase in friction does not result in a decrease in inertia.

B. When there is less friction, there is more inertia: This statement is correct. When there is less friction, there are fewer forces opposing the motion of an object. As a result, the object experiences less resistance and can continue moving more easily. Hence, less friction allows for more inertia.

C. When there is more friction, there is more inertia: This statement is incorrect. As explained earlier, friction and inertia have an inverse relationship, so an increase in friction does not cause an increase in inertia.

D. When there is no friction, there is more inertia: This statement is incorrect. While it is true that an object with no friction experiences less resistance, it does not necessarily mean that it has more inertia. Inertia depends on the mass of the object, regardless of whether there is friction or not.

So, the correct answer is B: When there is less friction, there is more inertia.