Recent content by cero39

  1. C

    Linear momentum and energy problem

    Great. Thank you.
  2. C

    Linear momentum and energy problem

    Right so once I find the height I calculate the energy needed to go that high (m*g*h_2), add it to that of the wind(F*d), subtract from the potential energy at the first height (7002.1 J), and use that as my KE? If so, I get 6.16 m/s as my answer.
  3. C

    Linear momentum and energy problem

    Hm... It doesn't say but in the picture there is an angle phi to the left of the vertical, on the other side of theta. So she does swing past the vertical but no information is given as to how far past or how high...
  4. C

    Linear momentum and energy problem

    Homework Statement Jane, whose mass is 50 kg, needs to swing across a river having width D (50 m). She must swing into a wind with force F = 100 N while on a vine of length L (40 m) and initially making an angle theta of 50 degrees with the vertical. What minimum speed must Jane have to just...
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