How much force pull forward on the rope

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    Force Pull Rope
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Homework Help Overview

The problem involves a rope pulling a block of ice across a frictionless surface, focusing on the forces involved in the system. It is situated in the context of dynamics and Newton's laws of motion.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the application of Newton's third law and the need to consider the mass of both the rope and the block when calculating the forces involved.

Discussion Status

Some participants have provided guidance on considering the total mass being accelerated, while others have expressed challenges in applying the concepts. There appears to be a productive exchange of ideas regarding the forces acting on the system.

Contextual Notes

There is a mention of a frictionless surface and specific masses, but the discussion also highlights potential gaps in understanding how to account for all components of the system when calculating forces.

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Homework Statement



A 2m long, 600g rope pulls a 10kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.7m/s^2. a.) How much force pulls forward on the ice? b.) How much force pull forward on the rope.

Homework Equations





The Attempt at a Solution


I solved part a by using T=m(Ax). I got 17N. I'm having trouble solving part b.
 
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Word to the wise, Newton's third law.
 
I tried that already, and it didn't work.
 
You didn't include the force needed to accelerate the rope in addition to the block of ice.
 
And how do I do that?
 
Add the mass of the rope to the mass of the ice. Whatever is pulling has to pull both.
 
That worked. Thank you!
 

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