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3 years ago

A box at rest on a ramp is in equilibrium, as shown.

Physics

2 answers:

Morgarella [4.7K]3 years ago

8 0

Answer:

Ffs = 251 N

Fn = 691 N

Explanation:

Take the y direction to be normal to the ramp and the x direction to be parallel to the ramp.

The angle of the ramp is 20°, so the angle that the weight vector makes with the normal is also 20°. Therefore:

Fgx = Fg sin 20°

Fgy = Fg cos 20°

Sum of the forces in the x direction (parallel to the ramp):

∑F = ma

Ffs − Fgx = 0

Ffs = Fgx

Ffs = Fg sin 20°

Ffs = 735 sin 20°

Ffs ≈ 251

Sum of the forces in the y direction (normal to the ramp):

∑F = ma

Fn − Fgy = 0

Fn = Fgy

Fn = Fg cos 20°

Fn = 735 cos 20°

Fn ≈ 691

Anna35 [415]3 years ago

3 0

Answer:

251 N

691 N

Explanation:

Correct on Edge

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The fulfillment factor is equal to:

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3 years ago

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tangare [24]

Answer:

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