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ipn [44]
2 years ago
11

PLEASE HELP ONLY NINE DAYS LEFT I WILL GIVE BRANLIEST

Physics
1 answer:
Snowcat [4.5K]2 years ago
6 0

Answer:

A A A

Explanation:

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3 years ago
The angular speed of digital video discs (DVDs) varies with whether the inner or outer part of the disc is being read. (CDs func
Kitty [74]

Answer:

α = 0.0135 rad/s²

Explanation:

given,

t = 133 min = 133 x 60 = 7980 s

angular speed varies from 570 rpm to 1600 rpm

now,

570 rpm = 570 \times \dfrac{2\pi}{60}

              = 59.69 rad/s

1600 rpm =  = 570 \times \dfrac{2\pi}{60}

              = 167.6 rad/s

using equation of rotational motion

ωf = ωi + αt    

167.6 = 59.7 + α x 7980

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3 years ago
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