- #1
chaz699
- 19
- 0
hello, i am currently going over past exam questions to further my knowledge in as physics when i came across this old question which i don't quite understand,
a length of steel and a length of brass are joined together. This combination is suspended from a fixed support and a force of 80n is applied at the bottom end
each wire has a cross scetional area of 2.4 x 10(-6)m(squared)
length of steel wire = 0.80m
length of brass wire = 1.40m
youngs modulas for steel = 2.0 x 10(11)pa
youngs modulas for brass = 1.0 x 10(11)pa
calculate the total extension produced when the force 80n is applied
basically so far I've substituted stress to be 80n/2.4 x 10(-6)
but I am not sure about the change in length on the strain side of things
someone help?
a length of steel and a length of brass are joined together. This combination is suspended from a fixed support and a force of 80n is applied at the bottom end
each wire has a cross scetional area of 2.4 x 10(-6)m(squared)
length of steel wire = 0.80m
length of brass wire = 1.40m
youngs modulas for steel = 2.0 x 10(11)pa
youngs modulas for brass = 1.0 x 10(11)pa
calculate the total extension produced when the force 80n is applied
basically so far I've substituted stress to be 80n/2.4 x 10(-6)
but I am not sure about the change in length on the strain side of things
someone help?