How much force pull forward on the rope

  • #1
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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.
 

Answers and Replies

  • #2
Dick
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Word to the wise, Newton's third law.
 
  • #3
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I tried that already, and it didn't work.
 
  • #4
Dick
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You didn't include the force needed to accelerate the rope in addition to the block of ice.
 
  • #5
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And how do I do that?
 
  • #6
Dick
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Add the mass of the rope to the mass of the ice. Whatever is pulling has to pull both.
 
  • #7
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That worked. Thank you!
 

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