What will be the restoring force if a spring with a spring constant of 45 newtons per meter is pulled 0.03 meters in the downward direction?

A.) 14 newtons upward
B.) 45 newtons upward
C.) 67 newtons upward
D.) 130 newtons upward
E.) 150 newtons upward

Question

What will be the restoring force if a spring with a spring constant of 45 newtons per meter is pulled 0.03 meters in the downward direction?

A.) 14 newtons upward
B.) 45 newtons upward
C.) 67 newtons upward
D.) 130 newtons upward
E.) 150 newtons upward

anonymous · Answer

restoring force = - kx/2
where k is spring constant
x is the displacement
- sign shows direction of restoring force is opposite to the displacement
now you can find it