Elementary Mechanics Review

4th-class-a1-review

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Question 1 of 1

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271421

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Which of the following statements about belt drive systems is FALSE?

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271422

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Idler gears:

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267756

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With static or kinetic friction, the force of friction is proportional to the _______ that presses the two surfaces together.

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267757

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If a force of 1400N, applied in the direction of movement, will cause continued steady movement of a 400kg crate. Calculate the coefficient of kinetic friction.

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267758

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Which of the following statements is FALSE?

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267759

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The coefficient of friction is defined as the:

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267760

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In the case of static friction, if the downward force between the surfaces is doubled, then the friction will:

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Static friction is:

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267728

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A car has an initial velocity of 25km/h and in 84 seconds it accelerates to 110km/h. How far did it travel while accelerating?

Select the correct answer(s).

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267729

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An airplane travels 500km due west in 2 hours. Its average velocity was:

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267730

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The area under a velocity vs. time graph equals:

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267731

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An object is dropped from a height of 45m. What will be its velocity immediately before it hits the ground?

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267745

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1 psi equals:

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Potential Energy =

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Elementary Mechanics Review

Question 1 of 1

Time Left

Which of the following statements about belt drive systems is FALSE?

Select the correct answer(s).

(0/0)

Idler gears:

Select the correct answer(s).

(0/0)

With static or kinetic friction, the force of friction is proportional to the _______ that presses the two surfaces together.

Select the correct answer(s).

(0/0)

If a force of 1400N, applied in the direction of movement, will cause continued steady movement of a 400kg crate. Calculate the coefficient of kinetic friction.

Select the correct answer(s).

(0/0)

Which of the following statements is FALSE?

Select the correct answer(s).

(0/0)

The coefficient of friction is defined as the:

Select the correct answer(s).

(0/0)

In the case of static friction, if the downward force between the surfaces is doubled, then the friction will:

Select the correct answer(s).

(0/0)

Static friction is:

Select the correct answer(s).

(0/0)

A car has an initial velocity of 25km/h and in 84 seconds it accelerates to 110km/h. How far did it travel while accelerating?

Select the correct answer(s).

(0/0)

An airplane travels 500km due west in 2 hours. Its average velocity was:

Select the correct answer(s).

(0/0)

The area under a velocity vs. time graph equals:

Select the correct answer(s).

(0/0)

An object is dropped from a height of 45m. What will be its velocity immediately before it hits the ground?

Select the correct answer(s).

(0/0)

1 psi equals:

Select the correct answer(s).

(0/0)

Potential Energy =

Select the correct answer(s).

(0/0)

A 68.5kg object is at rest at a height of 65m above the surface of the earth. What is its kinetic energy?

Select the correct answer(s).

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