Asked by Jud
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.) 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.
Answers
Answered by
bobpursley
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
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
Answered by
Jud
Ok. Thanks! Now I can have my starting point. Thank you.
Answered by
keke
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
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