# physics

A spring has an unstretched length of 10 cm . It exerts a restoring force F when stretched to a length of 12 cm .

For what total stretched length of the spring is its restoring force 3F?

At what compressed length is the restoring force 2F?

I keep doing this but I do not think Im using the right math to solve this

1. 👍 1
2. 👎 0
3. 👁 2,338
1. F = kx
Doubling F means doubling x as k will not change.

1. 👍 0
2. 👎 0
2. 1)16cm
2)6cm

1. 👍 0
2. 👎 0

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