75 kg box experiences more frictional force than a 50kg box. Give reasons why.
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Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.
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A force of friction is any force that opposes the motion of an object due to the contact of the object with other bodies. ... This time the force of friction is larger because it is proportional to the normal force exerted by the floor on the box which itself is equal to the weight of the box...
Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.
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