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M1-triangle of forces

http://www.mei.org.uk/files/papers/ouikyuj45y.pdf

Can anyone help with q5ii please? really confused
Original post by helpme456
http://www.mei.org.uk/files/papers/ouikyuj45y.pdf

Can anyone help with q5ii please? really confused


What's confusing?
Original post by helpme456
http://www.mei.org.uk/files/papers/ouikyuj45y.pdf

Can anyone help with q5ii please? really confused


Just draw a triangle with a vertical line to represent the 400 N force, then a side parallel to BA and the third side parallel to BC. Then use trigonometry to find the lengths of these two sides
Reply 3
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helpme456
OP
Original post by brianeverit
Just draw a triangle with a vertical line to represent the 400 N force, then a side parallel to BA and the third side parallel to BC. Then use trigonometry to find the lengths of these two sides


How do I know the angles are 30, 30 and 120? I cant visualise how this triangle could be created
(edited 10 years ago)
Original post by helpme456
How do I know the angles are 30, 30 and 120? I cant visualise how this triangle could be created


Draw the forces separately to start with, with the "arrowhead" pointing in the right direction. Then "move" them to form a triangle, joining them head to tail.
Reply 5
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helpme456
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Original post by ghostwalker
Draw the forces separately to start with, with the "arrowhead" pointing in the right direction. Then "move" them to form a triangle, joining them head to tail.


Ok thanks buddy, thanks to you I understand the whole paper now. Appreciated
Original post by helpme456
Ok thanks buddy, thanks to you I understand the whole paper now. Appreciated


:cool:

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