a. A horse pulls a cart along a flat road. Consider the following four forces that arise in this situation. 1. the force of the

Question

a. A horse pulls a cart along a flat road. Consider the following four forces that arise in this situation.

1. the force of the horse pulling on the cart
2. the force of the cart pulling on the horse
3. the force of the horse pushing on the road
4. the force of the road pushing on the horse

b. Suppose that the horse and cart have started from rest; and as time goes on, their speed increases in the same direction. Which one of the following conclusions is correct concerning the magnitudes of the forces mentioned above?

1. Force 1 exceeds Force 2.
2. Force 2 is less than Force 3.
3. Force 2 exceeds Force 4.
4. Force 3 exceeds Force 4.
5. Forces 1 and 2 cannot have equal magnitudes.

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Thành Đạt 4 years 2021-07-18T08:33:04+00:00 1 Answers 28 views 0

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  1. trungdung22
    0
    2021-07-18T08:34:29+00:00
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    Answer:

    a) F₁ = F₂,  F₃ = F₄,  b)  the correct answer is 3

    Explanation:

    a) In this exercise we have several action and reaction forces, which are characterized by having the same magnitude, but different direction and being applied to different bodies

    Forces 1 and 2 are action and reaction forces F₁ = F₂

    Forces 3 and 4 are action and reaction forces F₃ = F₄

    as it indicates that the

    b) how the car increases if speed implies that force 1> force3

          F₁ > F₃

    therefore the correct answer is 3

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