Recent content by Nance

Thank you!

Thank you for your help!

Homework Statement A block with a weight of 2.9 N is at rest on a horizontal surface. A 1.3 N upward force is applied to the block by means of attached vertical string. (a) What is the magnitude of the force of the block on the horizontal surface? Homework Equations I'm not sure...

Ps, sorry I didn't know questions were supposed to be posted in another forum! In the future, I will post elsewhere! :)

Would I then subtract 249N from F=mg?

I'm trying to figure out this problem... A rock of mass 49 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 249 N. What is the magnitude of the acceleration of the rock? I know that I...