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Net force related question

  1. Oct 19, 2009 #1
    1. The problem statement, all variables and given/known data
    285 kg rowboat being pushed by a forward force of 112 N from the paddles. If its is accelerating at 0.120 m/s(squared) how much water resistance is it experiencing? (assume gravity and buoyancy cancel each other)

    Given:
    a = 0.120 m/s (2)
    Forward force = 112 N
    Mass = 285 kg



    2. Relevant equations
    unsure, just confused.


    3. The attempt at a solution
    Do not understand where to start.
     
  2. jcsd
  3. Oct 19, 2009 #2

    cepheid

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    Staff Emeritus
    Science Advisor
    Gold Member

    Start with Newton's Second Law. You know that the *net* force on the boat is equal to the mass times the acceleration. You know the acceleration. From this, you can figure out what the net force should be.
     
  4. Oct 20, 2009 #3
    Thanks. I got the answer and also understand it :D
     
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