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notsponge [240]
3 years ago
12

A motobike's tire rotates with a constant angular speed of 62.8 rad/s. The radius of a tire is 30cm. Assuming that no slipping o

ccurs, the linear speed at a
point 20 cm from the tire's center is:
Chọn một:
a.
10 m/s
b.
20 m/s
C.
18.8 m/s
d.
12.6 m/s
Physics
1 answer:
Dmitriy789 [7]3 years ago
7 0

Answer:

12.6 m/s

Explanation:

We know that the linear speed v = rω where r = radius and ω = angular acceleration. Given that ω = 62.8 rad/s and r = 20 cm from center = 0.2 cm

So, v = rω

= 0.2 m × 62.8 rad/s

= 12.56 m/s

≅12.6 m/s

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3 years ago
A person is riding a motorized tricycle. They weigh 180kg and are moving at 3 m/s over a distance of 300 m. How much work is don
agasfer [191]

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If a person is riding a motorized tricycle how much work do they do?

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If you have any questions about my answer please let me know and I will be happy to clarify any misunderstandings. Thanks and have a great day!

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