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Need help with this question

Hello, does anyone know how to answer this question?:

"The diagram shows tge forces acting on a light rod. Given that the resultant moment acting about Q is twice the resultant acting about P, and that both act in the clockwise direction, work out the value of F."

I can't send the picture but it is question 5 on resultant moment in year 2 practice book a level maths (pearson edexcel).

I'll be appreciated if someone can solve my problem 😅
(edited 2 years ago)

Reply 1

Original post
by FizzNeedsHelp
Hello, does anyone know how to answer this question?:

"The diagram shows tge forces acting on a light rod. Given that the resultant moment acting about Q is twice the resultant acting about P, and that both act in the clockwise direction, work out the value of F."

I can't send the picture but it is question 5 on resultant moment in year 2 practice book a level maths (pearson edexcel).

I'll be appreciated if someone can solve my problem 😅

Just calculate both moments and set one equal to twice the other and solve for F.

Reply 2

Wow thx! Got 23/6 as the answer :smile:

Reply 3

Original post
by FizzNeedsHelp
Wow thx! Got 23/6 as the answer :smile:

Sounds good. As a 3 marker, youd expect that its not going to be too complex, so set up an equation and solving for F.

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