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How much work is needed to push a 142- kg packing crate a distance of 2.45 m up an inclined plane that makes an angle of 20 o with the horizontal, when
inclined plane is frictionless?

  • PHYSICS~~~ -

    Work = M*g*H , where H is the vertical rise. M = 142 kg and g = 9.8 m/s^2.

    Trigonometry tells you that
    H = 2.45 sin20 meters

    Now do the calculation.

  • PHYSICS~~~ -

    Thank You!!!!

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