Which of the following statements is true?
Friction works in the direction opposite of motion.
Lubrication can be used to increase friction.
Only large masses exert gravitational force.
Air resistance is greatest for objects with small surface areas.
Aryan562002:
Answer is true only a)
first
I think
first one is correct
yes
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Friction works in the direction opposite of motion would be the answer...
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b I think it's help you
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