Physics, 04.06.2020 13:18 kingethan08
There are ways to reduce the friction between an object and a surface. For instance, if you wanted to reduce the friction between a piece of furniture and a floor, you could wax the floor to make it smoother. You could also attach wheels to the furniture. Imagine the bed in the previous example was on wheels. Would it be hard to move? The friction between a bed on wheels and the floor is much smaller than the friction between the same bed without wheels and the floor. The friction resisting the bed’s motion is smaller when the bed is on wheels, so moving this bed across the floor requires a smaller force. Look again at your corrected free-body diagram for a motionless bed. In order for the bed to start moving forward, what needs to be greater, your sister’s pushing force or the friction?
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There are ways to reduce the friction between an object and a surface. For instance, if you wanted t...
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