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brinethery Group Title

Dynamics: The force of the motor M on the cable is shown in the graph. Determine the velocity of the 450-kg crate A when t=2s

  • one year ago
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  1. brinethery Group Title
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    • one year ago
  2. brinethery Group Title
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    I can post my work if you'd like. I came out with .088 m/s, but that is wrong.

    • one year ago
  3. dayhiker42 Group Title
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    My suggestion would be to use conservation of energy since the force varies with time. Integrate the force curve and set that equal to change in potential energy from height and kinetic energy with upward velocity. Using F=ma to find the acceleration and taking the second integral will yeild the height for gravitational potential.

    • one year ago
  4. brinethery Group Title
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    I'm looking at another dynamics problem that's similar to this one for some guidance. Hopefully, it's just a rounding error hehe.

    • one year ago
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