Problem with object moving up an incline.

  • Thread starter pokeefer
  • Start date
  • #1
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Homework Statement



A box of mass 96 kg is pushed up an inclined plane which makes an angle of 21 degrees with the horizontal. The box moves at a steady speed of 3.2 m/s.

(a) What force, parallel to the plane, is being applied? (4 marks)

(b) What horizontal force is require to produce the same results? (2 marks)

Homework Equations



I can't name any off the top of my head.

The Attempt at a Solution



I'm having some trouble understanding mostly Part A of this question. What does it mean by parallel to the plane? Is it like the force of friction or gravity?
 

Answers and Replies

  • #2
rock.freak667
Homework Helper
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The weight acts vertically downwards. You want to resolve this weight into two components, one parallel to the plane and one vertical to the plane.

Link
 
  • #3
559
8
The force of friction is parallel to the plane..
 

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