A clerk can lift containers a vertical distance of 1 meter or can roll them up a 3 meter-long ramp to the same elevation. With the ramp, the

Question

A clerk can lift containers a vertical distance of 1 meter or can roll them up a 3 meter-long ramp to the same elevation. With the ramp, the applied force required is:______

a. The same.
b. Half as much.
c. Twice as much.
d. Four times as much.
e. None of the above

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Hưng Khoa 3 years 2021-08-31T04:33:41+00:00 1 Answers 21 views 0

Answers ( )

  1. Edana
    0
    2021-08-31T04:35:07+00:00
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    Answer:

    (e) none of the above

    Explanation:

    work done is the product of applied force and vertical distance.

    work done = Fd

    F₁d₁ = F₂d₂

    F_2 = \frac{F_1*d_1}{d_2}

    given;

    vertical distance a clerk can lift containers , d₁ = 1 m

    vertical distance rolled along a ramp, d₂ = 3 m

    substitute these values in the above equation;

    F_2 = \frac{F_1*1}{3}= \frac{1}{3}*F_1

    Therefore, the applied force is one-third the original value.

    The correct option is (e) none of the above.

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