give three examples to show that the friction is increased deliberately
Answers
Answer:
We deliberately increase friction by using brake pads in the brake system of bicycles and automobiles. When we are riding a bicycle, the brake pads do not touch the wheels. But when we press the brake lever, these pads arrest the motion of the rim due to friction. The wheel stops moving. Kabaddi players rub their hands with the soil for an easy grab of their opponents. Gymnasts apply some coarse substance on their hands to increase friction for better grip.
Answer:
1. Wheels of vehicles are grooved.
2. Soles of shoes are grooved.
3. Brake pads are used in the braking system of vehicles.
4. Kabaddi players rub their hands with soil for an easy grab of their opponents.
5. Gymnasts apply some coarse substance on their hands to increase friction for better grip.
6. Athletes wear spiked shoes to help them run faster.
7. Mountaineers wear spiked shoes while walking on snow.
8. When a surface becomes slippery it is made rough by spreading sand to increase friction.
9. For the beginning of a match, friction is essential.