- #1
kari82
- 37
- 0
I'm not able to get any of the multiple choice answers. Please help.
a force of 1100 lb compresses a spring from its natural length of 17in to a length of 14in. How much work is done in compressing it from 14in to 9in?
a)4600
b)0.075
c)10000
d)20000
What i did was F(x)=kx => 1100=3k => k=366.7
W=∫366.7x dx from x=3 to x=8, which equals 10084.25
is this answer correct?
a force of 1100 lb compresses a spring from its natural length of 17in to a length of 14in. How much work is done in compressing it from 14in to 9in?
a)4600
b)0.075
c)10000
d)20000
What i did was F(x)=kx => 1100=3k => k=366.7
W=∫366.7x dx from x=3 to x=8, which equals 10084.25
is this answer correct?