Recent content by zhao

  1. Z

    Undergrad Can Negative Force Result in Positive Work?

    well, work is equal to Force * Displacement I was thinking if displacement and force are both negative, it will give a pos. work
  2. Z

    Undergrad Can Negative Force Result in Positive Work?

    Is there an example where you are pushing in the negative direction (force in negative direction) and yet doing positive work? please help me