Mechanical Properties of solids NCERT Solutions Class 11 Physics - Solved Exercise Question 9.9

Question 9.9:
A steel cable with a radius of 1.5 cm supports a chairlift at a ski area. If the maximum stress is not to exceed 108 N m–2, what is the maximum load the cable can support?
Answer :
Radius of the steel cable, r = 1.5 cm = 0.015 m
Maximum allowable stress = 108 N m–2
Maximum stress = Maximum force / Area of cross-section
∴ Maximum force = Maximum stress × Area of cross-section
= 108 × π (0.015)2
= 7.065 × 104 N
Hence, the cable can support the maximum load of 7.065 × 104 N.


  1. Continue the good work; keep posting more n more n more.
    find out here now

  2. I think this is a charming issue, I expect you would surely post on it again sometime near the future. Thanks guys!
    Web Site