Find the additional force vector so that equilibrium takes place. F1= F2=

Question

Find the additional force vector so that equilibrium takes place. F1=<-2,7> F2=<5,3>

whpalmer4 · Answer

add the two force vectors.  The additional force vector for equilibrium will be -<F1+F2>

anonymous · Answer

Can I have help?

anonymous · Answer

Help Plz????

anonymous · Answer

A helicopter hovers 40 ft above the ground. Then the helicopter climbs at a rate of 21 ft/s. Write a rule that represents the helicopter’s height, h, above the ground as a function of time, t. what is the helicopter’s height after 45 s?

dumbcow · Answer

@hanynasur620 , please do not use another users post to promote your own question

anonymous · Answer

Nobody is answeing mine!!!

whpalmer4 · Answer

@hanynasur620 someone did in fact answer yours.  but this is not the way to get help!  please don't do it again, okay?

anonymous · Answer

Thank you! :)

anonymous · Answer

Sorry Im new to Openstudy IDK how to use it

whpalmer4 · Answer

@kaylady21 I'll check your answer when you're ready

anonymous · Answer

If the force vectors are (a,b) and (c,d), then to get the net force equal to zero you need the third vector to be
 -(a+c, b+d) so the three vectors add to zero, just as moderator indicated.

whpalmer4 · Answer

and of course that becomes <-(a+c), -(b+d)> = <-a-c, -b-d> in this case, probably easiest to add the vectors, then change the signs rather than changing all those signs first, but symbolically, @douglaswinslowcooper's explanation is right on the money