Q. Which of the following statements is/are correct for friction?

1. It acts along two surfaces in contact.
2. It opposes motion.

Select the correct answer from the codes given below:
Answer: Both 1 and 2
Notes: According to the Newton’s first law of motion a body continues to be in its state of rest or of uniform motion in a straight line unless an external force acts on it. But every object stops after some motion with a force of friction. The force acting along the two surfaces in contact which opposes motion of one body over other is called the force of friction.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.