A spring has an unstretched length of 9 cm. It exerts a restoring force F when...
A spring has an unstretched length of 9 cm. It exerts a restoring force F when stretched to a length of 11 cm.
Part 1 For what total stretched length of the spring is its restoring force 3F? (In 2 sig figs and cm)
Part 2 At what compressed length is the restoring force 2F? (In 2 sig figs and cm)
Homework Answers
Given that the spring has an unstretched length of 9 cm
and It exerts a restoring force F when stretched to a length of 11 cm.
Use formula 
-----------------------
Part 1 For what total stretched length of the spring is its restoring force 3F?
Applied Force = 3F
so total length = 9cm + 6cm
ANSWER :
================
Part 2 At what compressed length is the restoring force 2F? (In 2 sig figs and cm)
Applied Force = 2F
so total length = 9cm - 4cm
ANSWER :
================
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