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The total torque about pivot A provided ...

The total torque about pivot A provided by the forces shown in the figure, for L = 3 m, is

A

210Nm

B

140Nm

C

95Nm

D

75Nm

Text Solution

Verified by Experts

The correct Answer is:
D
`tau = 80 xx (3)/(2) xx sin 30^(@) + 70 xx 3 xx cos 60^(@)- 60 xx (3)/(2)`
`=165- 90 = 75N-m`
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