Ask questions and get helpful answers.

a 1.50 kg book is sliding along a rough horizontal surface. At point A it is moving at 3.21 m/s, and at point B it has slowed to 1.25m/s.

1.) How much work was done on the book between A and B?
2.) If -0.750 J of work is done on the book from B to C, how fast is it moving at point C?
3.) How fast would it be moving at C if +0.750 J of work were done on it from B to C?
4.) The book slides a distance of 2.50m from A to B. Determine the coefficient from A to B whilst using constant-force work formula to recalculate the answer to #1.)

I'm having real trouble with this problem.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
3 answers
  1. Horizontal surface, no change in PE.
    a) work done is by friction...what is the difference in KE
    b) same principle
    c) same principle
    4) friction=work/distance
    mu*mg=work/distance solve for mu

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    bobpursley
  2. Ok. Thanks! Now I can have my starting point. Thank you.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. a jogger run around a square city block with sides of 30m. if she start an end at point a what distance has she run

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Answer this Question

Related Questions

Still need help?

You can ask a new question or browse existing questions.