Which of the following is/are true about the frictional force? 1. It a

1.	Which of the following is/are true about the frictional force? 1. It acts between all moving objects. 2. It always opposes relative motion between two objects. 3. It is a contact force. 4. It is a non- contact force.
Answer» Which of the following is/are true about the frictional force? 1. It acts between all moving objects. 2. It always opposes relative motion between two objects. 3. It is a contact force. 4. It is a non- contact force.

Which of the following is/are true about the frictional force? 1. It acts between all moving objects. 2. It always opposes relative motion between two objects. 3. It is a contact force. 4. It is a non- contact force.

Answer»

Which of the following is/are true about the frictional force?

1. It acts between all moving objects.

2. It always opposes relative motion between two objects.

3. It is a contact force.

4. It is a non- contact force.