help! Two part physics problem with no picture?
Jane, whose mass is 47.0 kg, needs to swing across a river filled with man-eating crocodiles in order to rescue Tarzan from danger. However, she must swing into a constant horizontal wind force, F, on a vine that is initially at an angle of with the vertical (see Fig. P5.73). D = 50.0 m, F = 128 N, L = 40 m, and = 50.0°.
Figure P5.73
(a) With what minimum speed must Jane begin her swing in order to just make it to the other side? (Hint: First determine the potential energy that can be associated with the wind force. Because the wind force is constant, use an analogy with the constant gravitational force.)
Answer should be in m/s
(b) Once the rescue is complete, Tarzan and Jane must swing back across the river. With what minimum speed must they begin their swing? Assume that Tarzan has a mass of 80.0 kg.
Answer should be in m/s
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If you have a physics or math tutoring room at your college, now might be a good time to check that out...
persist with those steps: a million. comic strip a photograph. 2. set up a coordinate gadget. Which way is x advantageous? Which way is y advantageous? 3. comic strip all forces appearing on the elephant. determine which you do get your angles acceptable. 4. injury your rigidity vectors into their x and y-factors. it rather is achieved with the aid of trigonometry. If this step is complicated reference the vectors element of your textbook. 5. Sum up all the forces in the x-course making particular to coach advantageous and detrimental warning signs finding on which course the forces are pointing. Set the sum of those forces equivalent to m*a_x and resolve. Do a similar for the y course. in case you persevere with those steps faithfully, all rigidity problems develop right into a chunk of cake.
haha
i just had this problem the other day... AP physics sucks... i'm dropping