Respuesta :
Hangs vertically as the rope passes over an ideal (frictionless and massless) pulley.
Which kind of surfaces experience greater frictional force?
- Since there is no resistance to body motion on smooth surfaces due to lack of unevenness, there is no frictional force.
- The imperfections between two surfaces that are in touch are what produce friction.
- The more irrational the surface, the rougher it is and the more friction there is between the two surfaces.
- Therefore, there is a greater frictional force between rough surfaces.
- This kind of arrangement of masses is frequently referred to as a modified Atwood machine because the circumstance that is being described is a variant of the Atwood machine.
- We always begin our approach with the free-body diagram to ensure that the calculation of the acceleration of each mass is error-free.
- Fnet=ma or aFnetm or aFnet& a1m[m is the object's mass.an is the object's acceleration.The net force exerted on the object is called F n et.]
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