Q. 22

A truck is pulling a car out of a ditch by means of a steel cable that is 9.1 m long and has a radius of 5 mm. When the car just begins to move, the tension in the cable is 800 N. How much has the cable stretched? (Young’s modulus for steel is 2 × 1011 Nm-2.)

Answer :

Given in Questions:


Length=9.1 m


Radius=5*10-3m


Tension=800N


Y=2*1011N/m-2




Putting the values in equation



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