GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Friction can be described as a:
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non-contact force
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contact force
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slowing of motion
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rough surface
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Explanation:
Detailed explanation-1: -b) The frictional force is said to be a contact force because frictional force occurs when two surfaces come in touch with each other. Example of frictional force is walking on the road. For frictional force to act, there should be a contact between the foot and the road. Therefore, it is known as a contact force.
Detailed explanation-2: -Frictional force is a non-contact force.
Detailed explanation-3: -friction, 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.
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