In our usual coordinate system( +x to the right, +y up (away from the center of the Earth), +z out of the page toward you), what is the vect

Question

In our usual coordinate system( +x to the right, +y up (away from the center of the Earth), +z out of the page toward you), what is the vector gravitational force on a 31 kg object sitting on the ground? (From the momentum principle you can conclude that a force of the same magnitude is exerted upward by the ground on the object if the momentum isn’t changing. In Chapter 4 we’ll see more about the origin of this force.)

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Adela 4 years 2021-09-05T12:09:26+00:00 1 Answers 11 views 0

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  1. Sapo1
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    2021-09-05T12:10:40+00:00
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    Answer:

    The vector gravitational force is  W = 303.8\ N( -y)

    Explanation:

    From the question we are told that

          The mass of the object is  m = 31 \ kg

          The acceleration due to gravity experienced by the object is g = 9.8 m/s^2

    Generally the vector gravitational force on the object is mathematically represented as

                           W = 31 * 9.8

                           W = 303.8\ N (-y)

    The  -y indicates that the direction of the force is towards the center of the earth

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )