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3 years ago

13

A car accelerates at a rate of 3.0 m/s2. If its original speed is 8.0 m/s, how many seconds will it take the car to reach a fina

l speed of 25.0 m/s?
Solution

1 answer:

V125BC [204]3 years ago

5 0

Answer:

5.7 s

Explanation:

Given:

a = 3.0 m/s²

v₀ = 8.0 m/s

v = 25.0 m/s

Find: t

v = at + v₀

25.0 m/s = (3.0 m/s²) t + 8.0 m/s

t ≈ 5.7 s

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Answer: The correct answer is "Number of rope segments supporting the load".

Explanation:

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The ideal mechanical advantage of a pulley system is equal to the number of rope segments which is supporting the load. More the rope segments, It is more helpful to do the lifting the work.

It means that less force is needed for this task to complete.

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Answer:

t = 2 seconds

Explanation:

In 2nd question, the question is given the attached figure.

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Answer:

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Explanation:

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2 years ago

A 0.46-kg cord is stretched between two supports, 7.2 m apart. When one support is struck by a hammer, a transverse wave travels

Kryger [21]

Answer:

T = 6.0 N

Explanation:

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3 years ago

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salantis [7]

Answer:

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Explanation:

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