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

Physics

1 answer:

ad-work [718]2 years ago

7 0

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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