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# Hard hard hard !!reps!! watch

1. A light rigid straight beam ABC is smoothly hinged at end A on a vertical wall and supported in horizontal position by a wire which is attached to the wall and midpoint of beam b at an angle of 60degrees to the beam.
Calculate the tension in the wire and direction and magnitude of the force on the hinge when a mass M is suspended from the string

okay so I took moments about point A
Tsin60=2Mg
so T is 2Mg/sin60... T is 2.3MG

i dont get how to get the force on the hinge?
is it 60 degrees below the horizontal?
dont get how to get the magnitude also, i tried to do a vector triangle and use the cosine rule
2. Can I have uck? <3
3. WTH i thought you meant reps as in points and getting more reps thing
4. (Original post by fatima1998)
WTH i thought you meant reps as in points and getting more reps thing
what lol? ill give thumbs up when people help
5. (Original post by Lola1244)
what lol? ill give thumbs up when people help
Most people are watching the Champions League semi
6. (Original post by M14B)
Most people are watching the Champions League semi
hahaah you can tell I have my life is exhilarating right now
7. (Original post by Lola1244)
A light rigid straight beam ABC is smoothly hinged at end A on a vertical wall and supported in horizontal position by a wire which is attached to the wall and midpoint of beam b at an angle of 60degrees to the beam.
Calculate the tension in the wire and direction and magnitude of the force on the hinge when a mass M is suspended from the string

okay so I took moments about point A
Tsin60=2Mg
so T is 2Mg/sin60... T is 2.3MG

i dont get how to get the force on the hinge?
is it 60 degrees below the horizontal?
dont get how to get the magnitude also, i tried to do a vector triangle and use the cosine rule
split the force of the hinge into a horizontal and vertical component and try resolving vertically and horizontally, any good?
8. (Original post by Katiee224)
split the force of the hinge into a horizontal and vertical component and try resolving vertically and horizontally, any good?
thank you

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