Recent content by rusty711

  1. R

    Work done on object vs work done by you

    But how do I solve these? What's the difference
  2. R

    Work done on object vs work done by you

    What is the difference between work done on an object and work done by you? For example, you exert a 100N force pushing a 10kg mass 3.0m across the floor with a coefficient of friction 0.60 1) what is the work done on the mass? 2) what is the work done by you? For question 1 I think it has to...
  3. R

    Why does the 30Ns vector get flipped in the Two Dimensional Impulse Problem?

    I drew the two vectors how they were given and solved for the resultant and the angle using cos law and sine law. But, in the answer key, the 30Ns vector was drawn reversed resulting in a different angle. Why is this?
  4. R

    Why does the 30Ns vector get flipped in the Two Dimensional Impulse Problem?

    Homework Statement an object with a mass of 5.0 kg is moving 4.0m/s north when an impulse of 30Ns 45 deg N of W is applied to it. what is its new velocity? Homework EquationsThe Attempt at a Solution I understand the process until solving for the angle. Why does the 30Ns vector get flipped?[/B]
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