In: Physics
A high-speed lifting mechanism supports a 710 kg object with a steel cable 20.0 m long and 4.00 cm2 in cross-sectional area.
(a) Determine the elongation of the cable.
_____ mm
(b) By what additional amount does the cable increase in length if
the object is accelerated upward at a rate of 2.6
m/s2?
_____ mm
(c) What is the greatest mass that can be accelerated upward at 2.6
m/s2 if the stress in the cable is not to exceed the
elastic limit of the cable, 2.2 ✕ 108 Pa?
______ kg