Work done by Tension Ques: Friction 0.5n

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Homework Help Overview

The discussion revolves around a physics problem involving a block sliding down an incline with a frictional force of 0.5 N. Participants are exploring the implications of tension in the context of energy conservation and work done.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster questions whether the work done by tension should be considered in the energy conservation analysis. Other participants inquire about the completeness of the information provided and the implications of energy equations related to the block's motion.

Discussion Status

The discussion is ongoing, with participants examining the role of tension in the energy balance of the system. Some guidance has been offered regarding setting total energy to zero before and after the block moves, but no consensus has been reached on the treatment of tension.

Contextual Notes

There is a potential lack of clarity regarding the initial conditions and the specific parameters of the problem, particularly concerning the role of tension in the energy calculations.

naman0804
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ques: how fast block moves after sliding 100 cm on incline?[by energy conservation]
A frictional force of 0.5 n actsdoubt: should work done by tension be accounted?
 

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Did you give us all the information that you were given?
 
yes i did ... i just want to know if tension does work
 
Before the block moves you can set the total energy to zero, after the block has moved 1m the total energy is still zero and is,

0 = .5N X 1m + mV^2/2 - mgh = force times distance + kinetic energy - potential energy

where h is the vertical distance the block falls.
 

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