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Friction
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09/05/2021 12:23 pm
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Put a tick mark on the correct choice :
When one object moves over the surface of other objects.
(a) surface of only lower object exerts frictional force on the upper object.
(b) surface of only upper object exerts frictional force on the lower object.
(c) surfaces of both the objects exert force on each other.
(d) surfaces of both the objects exert force in a direction opposite to each other.
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09/05/2021 12:24 pm
(d) surfaces of both the objects exert force in a direction opposite to each other.