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Introductory Physics Homework Help
Two ropes hold a 200N weight. Find the tension in each rope.
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[QUOTE="Simon Bridge, post: 4994396, member: 367532"] You have applied the equations first, and then checked using phsics, and observed that these do no match. It follows there is something wrong with the equations or how you have applied them. ... so you have the wrong angles. [SIZE=4]You are better just to use the physics [I]first[/I], with your understanding of forces and vectors, to construct the correct equations first go. Less memorizing to do too. So throw away the equations you were given: So look at the picture - can you see that the horizontal components of ##\vec R_1## is just going to be ##R_2##? What is the role of rope 2 anyway? If you cut it, what would happen? For R1, draw the triangle that shows the horizontal and vertical components adding up to make the vector ##\vec R_2##. Draw in the 53deg angle you are given. Now use [I]trigonometry[/I] to work out the relationships. (It may help you to draw in the x and y axes too.) The other way is to draw the vectors for R1+R2 ... you know what they have to add up to, the weight 200N straight up. This gives you a triangle. You know how to deal with triangles.[/SIZE] [/QUOTE]
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Introductory Physics Homework Help
Two ropes hold a 200N weight. Find the tension in each rope.
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