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A weight of 70 N is suspended to a rigid support with the help of strings as shown..find tension in string |
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Answer» WEIGHT of the block = 70N To find: The tension in the strings. Solution: Let the tension in the strings be T1 and T2 and the angle they make with the horizontal surface of the support be α and β respectively. The EQUATION of forces for the horizontal components will be: T1 cosα = T2 cosβ T1 = T2 cos β/ cosα Now, the equation of forces for the vertical components will be: T1 sinα + T2 sinβ = mg T2 sinα cosβ/ cosα + T2 sinβ = mg T2((sinα cosβ/ cosα) + sinβ) = 700 T2 = 700/((sinα cosβ/ cosα) + sinβ) T1 = T2 cosβ/ cosα Therefore the tension can be FOUND out by PUTTING the value of angles in the equations. |
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