Question

what are the advantage and disadvantage of friction ​

Answer 1

Answer:

disadvantages-

Friction produces unnecessary heatleading to the wastage of energy. The force of friction acts in the opposite direction of motion, so friction slows down the motion of moving objects. Forest fires are caused due to

the friction between tree branches.

Advantages. The force of friction acts in the opposite direction that the object is moving, sofriction slows down the motion of moving objects. Friction also produces unnecessary heat. For example, car engines become hotter because of friction.

Answer 2

Answer:

Advantages of friction:

1. Friction helps in stopping a vehicle on applying the brakes.

2. It helps in generating heat when we rub our hands together.

3.Asteroids burn in the atmosphere before reaching the earth due to friction and saves lives on earth.

Disadvantages of friction are:

1.Oppose motion.

2.Produce heat in moving parts of machines/engines.

3.Produce noise in machines /engines.

4.Makes engines to consume more fuel, in other words it reduces the efficiency of engines.

5.Cause wear and tear in moving parts of machines/engines.