Peg asked in Science & MathematicsPhysics · 2 weeks ago

homework help?

A box of mass 18.8 kg starts at rest and is pulled by a force of 128 N applied at an angle of 35.0º to the horizontal. There is no friction.

The box is pulled a distance of 18.2 meters.

What is WORK is done on the box?

2 Answers

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  • 2 weeks ago

    The force that does the work is the horizontal component of the 128 N force.

    F = 128 *cos 35 (105 N)

    Work = 128 * cos 35 * 18.2 = 2,329.6 * cos 35

    Rounded to three significant digits, the work is 1,910 N * m

  • Anonymous
    2 weeks ago

    work = force * distance = 128 N * cos 35 deg * 18.2 m

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