Homework Help: physics

Posted by Jodie on Tuesday, July 22, 2008 at 10:59pm.

A box,is resting on a smooth(frictionless)table.The mass of the box is 10 kg. (a)Determine the weight of the box and the normal force acting on(b)If the box is pushed down with a force of 40 Newton determine the normal force(c) If the box was pulled up with a force of 40 Newton,what now is the normal force on the box?

I know the question is long but I would greatly appreciate it if you solved it ..thank you!!!

physics - drwls, Tuesday, July 22, 2008 at 11:22pm
(a) The weight is M g = 98 N.
(b) If you push down with 40 N force, add that to the weight
(c) If you pull up with a 40N force, subtract that from the weight.

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