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s2008m [1.1K]
3 years ago
7

Please help with vectors (will give BRAINLIEST answer)

Physics
1 answer:
zhenek [66]3 years ago
7 0

just analyze it in this way:

20cos30*=10( radical 3 )

20sin30*=10

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The sprinter ran 110 m in 11 seconds. What was her average speed in m/s?
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Answer:

10 m/s

Explanation:

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What is the formula for the moment of inertia of the person/single particle rotating in a circle? (Give these values with a subs
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Moment of inertia of single particle rotating in circle is I1 = 1/2 (m*r^2)

The value of the moment of inertia when the person is on the edge of the merry-go-round is I2=1/3 (m*L^2)

Moment of Inertia refers to:

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The moment of inertia of single particle rotating in a circle I1 = 1/2 (m*r^2)

here We note that the,

In the formula, r being the distance from the point particle to the axis of rotation and m being the mass of disk.

The value of the moment of inertia when the person is on the edge of the merry-go-round is determined with parallel-axis theorem:

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learn more about moment of Inertia here:

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2 years ago
Whats the difference between speed and velocity of an object
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Phase changes happen when a substance reach some special points. Sometimes when a liquid becomes a solid a freezing point or melting point is used to measure the temperature at which a liquid changes into a solid. Some of the phase changes are: Condensation, Freezing, Melting.

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