A high-speed lifting mechanism supports a 815 kg object with a steel cable 35.0 m long and 4.00 cm2 incross-sectional area.
(a) Determine the elongation of the cable.
mm
(b) By what additional amount does the cable increase in length ifthe object is accelerated upward at a rate of 3.2 m/s2?
mm
(c) What is the greatest mass that can be accelerated upward at3.2 m/s2 if the stress inthe cable is not to exceed the elastic limit of the cable, 2.2multiplied by 108Pa?
kg