Homework Help: Work Done On An Incline

1. Oct 12, 2007

ICEMANN6859

1. The problem statement, all variables and given/known data
FATHER PUSHs IS DAUGHTER ON A SLED UP A SNOWY INCLINE. IF THE SLED MOVES UP THE HILL WITH A CONSTANT VELOCITY how MUCH WORK IS DONE?
CHILD & SLED= 35KG FRICTION OF SNOW & SKIDS= .2 INCLINE= 15 DEGREES, d=10 m

Do i need to find the force? (N=mg)
and then Ncos15degrees?

3. The attempt at a solution
I don't know how to get started.

Last edited: Oct 12, 2007
2. Oct 12, 2007

cristo

Staff Emeritus
Have you made any attempt to answer this question? You must show some work before we can help you. Also, in future, would you please write in lower case: upper case is considered to be shouting.

3. Oct 12, 2007

ICEMANN6859

Yes I have, but I'm not getting the same answer as in the book.

4. Oct 12, 2007

ICEMANN6859

35kg*9.8= 343N
343N cos 15 degrees = .97

5. Oct 12, 2007

What is the definition of work?

Casey

6. Oct 12, 2007

ICEMANN6859

definiton of work is W=Fd

7. Oct 12, 2007

ICEMANN6859

or W=Fd = (Fcos thete)