santiestebank25 santiestebank25
  • 15-05-2020
  • Physics
contestada

A 20-kilogram box is sitting on an inclined plane with a 30-degree slope. If the box is at rest, what is the force
on the box due to friction?

Respuesta :

Xema8 Xema8
  • 21-05-2020

Answer:

Explanation:

The box is at rest because , the component of weight along the surface downwards is equal to frictional force .

frictional force = mgsinθ

= 20 x 9.8 sin 30

= 98 N .

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