# Homework Help: More net external forces

1. Sep 25, 2007

### anglum

Two lifeguards pull on ropes attached to a raft. If they pull in teh same direction, the raft experiences a net external force of 357 N to the right. If they pull in opposite directions the raft experiences a net external force of 127N to the left.

A what is the magnitude of the larger of the two forces?

B what is the magnitude of the smaller of the two forces?

I tried doing F1=F2 = 357 and F1-F2 = -127

and solved for F1 and F2

F1= 115
F2 = 242

2. Sep 25, 2007

### Astronuc

Staff Emeritus
What is one checking against - book or on-line?

3. Sep 25, 2007

### learningphysics

Seems correct to me. Did you enter the answers with 242N as the larger and 115N as the smaller?

4. Sep 25, 2007

### anglum

yeah they were correct im dumb and entered them in for the wrong assignment GRRRR

5. Sep 25, 2007

### Astronuc

Staff Emeritus
I was wondering about the order of the answers. One has to be careful with online tools.