Aspring has an equilibrium length of 2.0 meters and a spring constant of 10 newtons/meter. alice is pulling on
one end of the spring with a force of 3.0 newtons. bob is pulling on the opposite end of the spring with a force of

3.0 newtons, in the opposite direction. what is the resulting length of the spring?
(a) 1.7 m
(b) 2.0 m
(c) 2.3 m (correct answer)
(d) 2.6 m
(e) 8.0 m

option C

Explanation:

given,

length of spring = 2 m

spring constant = k = 10 N/m

Pulling force = 3 N

resulting length of the spring = ?

using formula

F = k x

F is the force applied

3 = 10 × x

x = 0.3 m

resulting length of the spring is equal to

L = 2 + x

L = 2 + 0.3

L = 2.3 m

hence, the correct answer is option C

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.