• 1) What is the weight of the box?
  Answer:
• 2) What is the friction force of the empty box on the piece of wood?
  Answer:
• 3) What is the weight of the box on the board at 30 degrees?
  Answer:
• 4) What is the weight of the box on the board at 45 degrees?
  Answer:
• 5) How much force is needed to pull the object up the 30 degree hill
  at a constant velocity?
  Answer: