Finding when acceleration is zero

  • #1
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Homework Statement


A block of mass 2.42kg is accelerated across a rough surface by a rope passing over a pulley, as shown in the figure below. The tension in the rope is 13.9N, and the pulley is 12.3cm above the top of the block. The coefficient of kinetic friction is 0.395.

A: 2.28 m/s^2

Calculate the value of x at which the acceleration becomes zero. <-- this is what i'm stuck on


Homework Equations




The Attempt at a Solution


I know when acceleration is equal to zero, it means that the forces in the x and y direction are equal to zero, but that is as far as i know of how I can complete this. Any suggestions?
 

Answers and Replies

  • #2
nrqed
Science Advisor
Homework Helper
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Homework Statement


A block of mass 2.42kg is accelerated across a rough surface by a rope passing over a pulley, as shown in the figure below. The tension in the rope is 13.9N, and the pulley is 12.3cm above the top of the block. The coefficient of kinetic friction is 0.395.

A: 2.28 m/s^2

Calculate the value of x at which the acceleration becomes zero. <-- this is what i'm stuck on


Homework Equations




The Attempt at a Solution


I know when acceleration is equal to zero, it means that the forces in the x and y direction are equal to zero, but that is as far as i know of how I can complete this. Any suggestions?
I don't know what x stands for, but you have to find when the net force is zero, as you said. Without a figure, it is hard to help
 

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