11. Give examples to show that friction is both a friend and a foe.
Answers
Answer:
Friction is friend as it helps us to walk on the ground while ensuring a firm grip with the ground. With no friction, there would have been no grip with the ground tending us to slip.
Friction can be a foe as well. For example: Sole of shoes or any footwear deteriorates with time as friction causes wear and tear. Hence, it becomes necessary to replace the shoes thereby increasing costs
Answer:
FRICTION IS A FRIEND AND FOE (SIMPLEST ANSWER)
Explanation:
FRICTION IS A TYPE OF A FRIEND WHEN IT COMES TO STOPPING THINGS THATS EVERYTHING YIU SHOULD HOLD GRIP ON AND EVEN YOU WRITE WITH YOUR PENCIL TOO AND HELPS IN WALKING , MUCH MORE
BY THE WAY ITS A FOE TOO
BECAUSE IT CAN HAMPER MACHINES DURING THE MOVEMENT OF GEARS AND MUCH MORE AND EVEN SHOES WE WEAR GET TORN BECAUSE OF SAME REASON AND SOME MACHINES GET OVERHATED DUE TO FRICTION IN THEM
HOPE THIS HELPS,
KAUSHIK.S