Recent content by esun

Almost. You have a magical 1/2 that shows up in your expression for L that shouldn't be there.

a) The force of friction is F_s = uN, where u = coefficient of friction and N = normal force. You figured out the normal force when computing the weight mg. So now you have F_s. F_s actually doesn't show up until we start pushing the paperweight, so let's pretend we're pushing the paperweight...