1. Nov 13, 2012

### liamtcarroll

A 2.5 kg mass accelerates at 6.1 m/s
in adirection 37◦north of east. One of the two
forces acting on the mass has a magnitude of
6.05 N and is directed north.
Determine the magnitude of the second
force.

I know you have to break it up into multiple components, but otherwise i don't have a clue of what to do

Last edited: Nov 13, 2012
2. Nov 13, 2012

### aralbrec

Re: Newtons 2nd Law plz help

If a mass accelerates in a certain direction, the net force applied to the mass must act in the same direction.

F = ma is a vector equation.

3. Nov 14, 2012

### bsbs

Re: Newtons 2nd Law plz help

ya, key word here is net force, two forces accelerating at 6.1m/s/s, one of which was given, just get the N and magnitude correct for the other.

if you are the marker for my exam, i think i'll be gone! amended the units for acceleration.....hahaha

Last edited: Nov 14, 2012
4. Nov 14, 2012

### aralbrec

Re: Newtons 2nd Law plz help

Just pointing out the acceleration is 6.1 m/s2. It was beginning to bug me now that I've seen it in multiple threads :-)