How Much Work is Done Pushing a Sled Up an Incline?

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Homework Help Overview

The problem involves calculating the work done when pushing a sled up a snowy incline at a constant velocity. The sled, with a combined mass of 35 kg, is subjected to friction and is on a 15-degree incline over a distance of 10 meters.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to determine the necessary force to calculate work, questioning if they need to find the normal force and its components. Some participants inquire about the definition of work and its relation to the problem.

Discussion Status

The discussion is ongoing, with participants exploring definitions and calculations related to work. There is a recognition of differing answers, and some guidance has been offered regarding the definition of work.

Contextual Notes

Participants have noted the importance of showing work in their attempts, and there are indications of confusion regarding the calculations and definitions involved.

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Homework Statement


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?


The Attempt at a Solution


I don't know how to get started.
 
Last edited:
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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.
 
Yes I have, but I'm not getting the same answer as in the book.
Sorry about the upper caps.
 
35kg*9.8= 343N
343N cos 15 degrees = .97
 
What is the definition of work?

Casey
 
definition of work is W=Fd
 
or W=Fd = (Fcos thete)
 

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