text: Peg asked in Science & MathematicsPhysics · 9 months 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?
  
  Relevance
  • 9 months 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
  9 months ago
  
  work = force * distance = 128 N * cos 35 deg * 18.2 m