When two objects are in contact while external forces applied, friction will develop at the contact interface. If the friction is static friction, which of the following statement is incorrect: O The frictional force equals to the normal force multiped by the coefficient of static friction. O The two objects move in the same velocity and same acceleration. The frictional force is always in the opposite direction to the tendency of the relative motion. O There is no relative motion between the two objects.

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
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When two objects are in contact while external forces applied, friction will develop at the contact
interface. If the friction is static friction, which of the following statement is incorrect:
The frictional force equals to the normal force multiped by the coefficient of static friction.
The two objects move in the same velocity and same acceleration.
O The frictional force is always in the opposite direction to the tendency of the relative motion.
O There is no relative motion between the two objects.
Transcribed Image Text:When two objects are in contact while external forces applied, friction will develop at the contact interface. If the friction is static friction, which of the following statement is incorrect: The frictional force equals to the normal force multiped by the coefficient of static friction. The two objects move in the same velocity and same acceleration. O The frictional force is always in the opposite direction to the tendency of the relative motion. O There is no relative motion between the two objects.
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