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rigid m2
it's 5a first question in heinemann book
a uniform beam AB of mass 20 kg and length 2m is attached to a vertical wall by means of a smooth hinge at A. The beam is maintained in the horizontal psition by means of a light inextensible string, one end of which is attached to the beam at B and the other end is attached to the wall at a point in the wall 2m vertically above A
a) calc T
a uniform beam AB of mass 20 kg and length 2m is attached to a vertical wall by means of a smooth hinge at A. The beam is maintained in the horizontal psition by means of a light inextensible string, one end of which is attached to the beam at B and the other end is attached to the wall at a point in the wall 2m vertically above A
a) calc T
mabs
it's 5a first question in heinemann book
a uniform beam AB of mass 20 kg and length 2m is attached to a vertical wall by means of a smooth hinge at A. The beam is maintained in the horizontal psition by means of a light inextensible string, one end of which is attached to the beam at B and the other end is attached to the wall at a point in the wall 2m vertically above A
a) calc T
a uniform beam AB of mass 20 kg and length 2m is attached to a vertical wall by means of a smooth hinge at A. The beam is maintained in the horizontal psition by means of a light inextensible string, one end of which is attached to the beam at B and the other end is attached to the wall at a point in the wall 2m vertically above A
a) calc T
Assuming T is the tension in the string,
Take moments about A
2m*Tcos45 = 1m*20g
T/√2 = 10g = 98
T = 98√2
T = 138.6N
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