Finding Distance Traveled

  • Thread starter Heat
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  • #1
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Homework Statement


A dockworker applies a constant horizontal force of 74.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13.0 m in a time 4.50 s.

If the worker stops pushing at the end of 4.50 s, how far does the block move in the next 5.70 s?

Homework Equations



F=MA

The Attempt at a Solution



I solved for mass, using the equation,

m = 57.6


now that I know mass

how do I get started?

I tried doing (74/57.6)5.70
 

Answers and Replies

  • #2
learningphysics
Homework Helper
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You don't need the mass in this question or the force. You just need the velocity at the end of the 4.50s.

Then you answer would be v*5.70s
 
  • #3
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velocity should be then 13/4.50? am i right..
 
  • #4
learningphysics
Homework Helper
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velocity should be then 13/4.50? am i right..
No. That is only for constant velocity... the block is accelerating.
 
  • #5
273
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would velocity then be 5.78m/s?
 
  • #6
learningphysics
Homework Helper
4,099
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would velocity then be 5.78m/s?
Yup.
 

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