A vertical solid steel post of diameter d = 21.4cm and length L = 2m is required to support a load of mass m = 7650kg. You can ignore the weight of the post. Take free fall acceleration to be g=9.8m/s2 .
Part A What is the stress in the post?
P=_______Pa
Part B What is the strain in the post?
?LL =_____________
Part C What is the change in the post's length when the load is applied?
?L =____________m