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Vikki [24]
3 years ago
9

Starting from rest, a crate of mass m is pushed up a frictionless slope of angle theta by a horizontal force of magnitude F. Use

work and energy to find an expression for the crate's speed v when it is at height h above the bottom of the slope. Express your answer in terms of the variables m, F, theta, h, and free fall acceleration g v=
Physics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer:

v =  sqrt[2*(F*h*cot(theta)-mgh)/m]

Explanation:

Work  = KE + Ug

F*r=1/2mv^2+mgh

1/2mv^2=F*r-mgh

v=sqrt[2(F*r-mgh)/m]

r=h/tan(theta)=h*cot(theta)

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The unit of measurement is best to estimate the volume of a juice box will be kilogram.

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8 0
2 years ago
Modern observations have shown that the geometry of the universe is ____.
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2 years ago
What is the distance fallen for a freely falling object 1 s after being dropped from a rest position? What is the distance for a
kondor19780726 [428]
<h2>Distance traveled in 1 second after drop is 4.9 m</h2><h2>Distance traveled in 4 seconds after drop is 78.4 m</h2>

Explanation:

We have s = ut + 0.5at²

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V125BC [204]

5.610^-26 m  is closest to the wavelength of the light.

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I believe destructive interference
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