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Why does it seem harder to start sliding a couch?

It may seem harder to start sliding a couch because of the friction between the couch and the floor. The weight and size of the couch can make it more difficult to overcome this friction and get it moving.


Why is my couch so staticy?

Your couch may be staticky due to a lack of humidity in the air, causing static electricity to build up on the fabric. This can be exacerbated by certain materials or the friction of sitting and moving on the couch.


A certain material has a density of 0.2 gml. Is this material good for building a bridge or for making chushions for a couch?

A material with a density of 0.2 g/ml is light, suitable for cushions in a couch since it provides softness without adding too much weight. However, it wouldn't be ideal for building a bridge due to its low mass and potential inability to support structural requirements.


How can I properly ground a couch to ensure stability and safety in my living room?

To properly ground a couch for stability and safety in your living room, you can use furniture straps or brackets to secure it to the wall. This will help prevent tipping over and ensure that the couch stays in place. Additionally, make sure the legs of the couch are level and on a flat surface to avoid wobbling.


When moving a couch you exert a force of 400N and push it 4M how much work has been done on the couch?

The work done on the couch is given by the formula: Work = Force x Distance. In this case, the work done is 400N x 4m = 1600 J (joules).