X+y=12 -x=-y-10 HELP thanks

Mathematics

1 answer:

Travka [436]2 years ago

4 0

do you have a picture or problem sentance that goes with that

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Hi can somebody check if this is correct please?

olya-2409 [2.1K]

Answer:

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A three inch diameter pulley on an electric motor that runs at 1800

Bezzdna [24]

Answer:

a) 3 inch pulley: 11,309.7 radians/min

6) 6 inch pulley: 5654.7 radians/min

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Step-by-step explanation:

Hi!

When a pulley wirh radius R rotantes an angle θ, the arc length travelled by a point on its rim is Rθ. Then the tangential speed V is related to angular speed ω as:

$V=R\omega$

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$\omega_1 R_1 = \omega_2 R_2\\$