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Anonymous users2024-01-24Because under the same contact conditions, the sliding friction is directly proportional to the pressure of the object on the ground, and the pressure on the ground is naturally greater for heavy furniture.
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Anonymous users2024-01-23According to the formula of sliding friction: F = N
The former and the latter have the same friction factor as the ground but the gravity of heavy furniture.
Large, the pressure on the ground is also large, that is, N is large, so the friction F is also large.
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Anonymous users2024-01-22Because heavy furniture has a lot of friction with the ground.
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Anonymous users2024-01-21The friction is directly proportional to the weight: f=umg, and the friction between heavy furniture and the ground is large.
If the gravity is large, the friction will be great, and the force of parallel movement will be greater.
Gravitational friction increases! The force will naturally increase! Burn more calories!
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