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3 years ago

Can force be two-dimensional?

Physics

1 answer:

nata0808 [166]3 years ago

3 0

Answer:

Yes

Explanation:

Just as motion in two dimensions introduced vectors, forces in two dimensions also involve more involved issues.

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In a downtown office building, you notice each of the four sections of a rotating door has a mass of 75 kg. What is the width, i

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Answer:

each door has a width of 2.666 meters

Explanation:

from Newton's second law applied to rotational motion:

ζ = I α

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if we have 4 doors , that is 2 flat plates with length of 2L perpendicular to each other:

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thus

ζ = I α

4* F * L = 2/3 * (4*m) L² * α

L = 3/2* F/ ( m*α) = 3/2* 56 N / ( 75 Kg * 0.420 rad/seg²) = 2.666 m

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3 years ago

A stuntman is being pulled along a rough road at a constant velocity by a cable attached to a moving truck. The cable is paralle

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Answer:

715 N

Explanation:

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Answer:

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