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I was wondering if someone could help me with a homework problem for non-calculus based physics:

Two crewmen pull a boat through a lock. One crewman pulls with a force of F1 = 150 N at an angle of 32 degrees relative to the forward direction of the boat. THe second crewman, on the opposite side of the lock, pulls at an angle of 45 degrees. With what Force F2 should the second crewman pull so that the net force of the two crewmen is in the forward direction?

F1 is F subone and F2 is F subtwo

THank you for your help!

jcais@msn.com

I worked the problem out by this but have the wrong answer:

F = -F1Sintheta1/Sintheta

= -(150N)sin32 degrees/sin(-45degrees) = 116N

the computer program is saying this is wrong.

I tried 120N to maybe b/c sig figs. Not sure

Thanks!

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# Homework Help: Non-calculus based general physics question

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