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39 votes
39 votes
3. Assume that the elastic bands on a slingshot work like a spring with a

spring constant of 250 N/m. If you have to pull back with 100 N of stretch
(spring) force to fully stretch the bands, how far will the elastic bands stretch?

Please help me

User Leonid Zakharov
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3.2k points

2 Answers

9 votes
9 votes

Answer:

0.6

Step-by-step explanation:

I got it right

User Zia Khan
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25 votes
25 votes

As you stretch the band a distance x, the force you need to exert has a magnitude of (250 N/m) x.

So if 100 N is required to stretch it to maximum length, then this length is x such that

100 N = (250 N/m) x ==> x = (100 N)/(250 N/m) = 0.4 m

User Steffen Wenzel
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3.0k points