How to Calculate Minimum Force Needed to Move an Object

What is the minimum amount of force needed to move an object?

After pushing the couch onto the carpet, Danielle started pushing with 180 N of force and Ramone helped. What is the minimum amount of force will Ramone have to push to help get the couch to start moving?

Answer:

Without the total force needed to move the couch or the amount of friction to overcome, we can't accurately calculate Ramone's minimum required force. It would be the total force needed minus Danielle's 180 N or zero if the couch is already moving. These principles are a direct application of Newton's third law of motion.

The question seems to be concerned with Newton's laws of motion, more specifically the concept of force and its application. However, there isn't enough information given in the question to accurately determine the minimum amount of force that Ramone would need to exert to help Danielle move the couch.

The force Danielle is exerting, 180 N, is known, but we don't know the total force required to move the couch, or the amount of friction to overcome. The minimum force Ramone would need to apply would be the total force required to move the couch minus the force Danielle is already applying. In case the force Danielle is supplying is enough and the couch already started moving, Ramone would not need to exert any force.

It's worth noting that applying a parallel force, as in Newton's third law of motion, helps distribute the effort required when moving an object like a couch, which requires overcoming inertia and friction.

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