When two objects are rubbed against each other, the friction can produce heat. You can demonstrate this by rubbing two sticks together. This is an old-fashioned way to make a fire. Take two sticks and rub them together in a back and forth motion, kind of like sawing.
Explanation:
Friction is a force that resists the sliding or rolling of one solid object over another. Frictional forces, such as the traction needed to walk without slipping, may be beneficial, but they also present a great measure of opposition to motion.
Answers & Comments
Answer:
When two objects are rubbed against each other, the friction can produce heat. You can demonstrate this by rubbing two sticks together. This is an old-fashioned way to make a fire. Take two sticks and rub them together in a back and forth motion, kind of like sawing.
Explanation:
Friction is a force that resists the sliding or rolling of one solid object over another. Frictional forces, such as the traction needed to walk without slipping, may be beneficial, but they also present a great measure of opposition to motion.