Vector Application: Find Magnitude and Angle of the Resultant Force

This video shows how to find the magnitude and angle of the resultant force given the magnitude and angle between two vectors.

[karlhedberg]

Thank you good Sir! Kind regards from Sweden

[madds]

steve the man you are! thank you so much

[laurensong]

Thank you so much! You don't know how much this helped me 😊

[rabbisheryl]

It helped tons! I have an exam tomorrow here in Western Australia!

[Neonisfunny]

Thank you! very clear explanation and diagram.

[e.electricmindset]

You have help me very much sir
But why you used negative in the equation

[mohammedzayed]

I just liked and subscribed to your channel

[kaosarmnahid]

Sir one problem..in the last part of the video u have substructed alpha from total angle to find beta...but if i want to find the angle beta directly like u found angle alpha in this video...there i found a formula for this..but i want to know the proof of the formula...

Please plz plz response sir

[apollo-]

Sir will the same formula be applied if the examiner gives us Newton force instead of pounds ?

[kristinejoycepineda]

Thanks I can know answer my assignment :)

[kaosarmnahid]

Sir..i have understood thank u...but in my book i have got a formula to find the angle formed by resultant and each vector..the two formula is..
If two vectors are P & Q...and the resulatant forms an angle B with P and angle C with vector Q..and angle between P & Q is angle A..

Then..tanB= QsinA/(P+QcosA)
and...tanC= PsinA/(Q+PcosA)

Teach me the methods two proove each of them..specially 2nd one..

[leenmonts]

SIr How did you find 120 degree? Thank you