Asked by alice
We hang a mass of 500kg on a cylindrical steel rod of radius 0.5 cm and length 1 m. How much will the rod stretch? Young's modulus: steel 12*10^10 N/m^2.
Now change steel to nylon. How much will it stretch?
Nylon: 0.36*10^10 N/m^2.
Thanks.
Now change steel to nylon. How much will it stretch?
Nylon: 0.36*10^10 N/m^2.
Thanks.
Answers
Answered by
Elena
W/A =Y(ΔL/L)
ΔL=W•L/A•Y=
=mg•L/πr²•Y
ΔL=W•L/A•Y=
=mg•L/πr²•Y
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