# Physics

posted by
**arcos15**
.

A sign whose weight is 95 lbs is held up by a chain.

(1) With what force does the chain need to be pulled up to keep the sign in place?

___________ lbs

(2) Jenna writes a mathematical description,

95 lbs + - 95 lbs = 0. What does the sign of each number represent? MULTIPLE CHOICE

a).that one is a chain force and one is gravity

b).how much force is added or subtracted to her hand

c).the direction in which each force is exerted