Question

the force required to pull the spring upto 12cm is 120N what is the requrd work to pull a spring another 12 cm parbine8@gmail​

Answer 1

Explanation:

As more the extension, more is the force required. Force and stretch are proportional to one another such, that if you double the force, the amount of stretch will double.

F

1

=kx

1

20=k×40

Thus spring constant k=

2

1

N/m

F

2

=kx

2

F

2

=

2

1

×2×40

F

2

=40N