What is magnitude of force? A block with a weight of 3.1 N is at rest on a horizontal surface. A 1.4 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?

Question

What is magnitude of force? A block with a weight of 3.1 N is at rest on a horizontal surface. A 1.4 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?

anonymous · Answer

all you have to do is find the normal force and use newtons third law to reason that its equal to the opposite force

anonymous · Answer

but isn't its force just 3.1 N?

anonymous · Answer

ohhhh no I get it its just 1.7. Thanks!