Avery light ideal spring having a spring constant (force constant) of 8.2 n/cm is used to lift a 2.2-kg tool with an upward acceleration of 3.25 m/s2. if the spring has negligible length when it us not stretched, how long is it while it is pulling the tool upward?

x = 3.5 cm

Explanation:

When spring is used as a lift tool

so the mass suspended on it will have spring force on it

So as per the force equation of mass we can say

now net force on the mass is

here we have

now we have

a and c

explanation:

both a and c are correct answers to my knowledge, it's been a bit since i've done anything related to magnetic fields, but it should be right.

the answer would be c