Recent content by apathetic_operator

  1. apathetic_operator

    What does a force of zero indicate about the total force acting on a particle?

    "The force is zero" means the total force act on the particle is zero? Then there must be an external force. If not, then Fx=0 ? since Fx = d(U(x))/dx, the answer of (b) should be (i), but how about (a)?
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