A spring 40 mm long is stretched by theapplication of a force. If 10 N force required tostretch the spring through 1 mm, then work donein stretching the spring through 40 mm, is(1) 23 J(2) 68 J(3) 84 J(4) 8 J

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A spring 40 mm long is stretched by the application of a force. If 10 N force required to stretch the spring through 1 mm, then work done in stretching the spring through 40 mm is

Q. A spring

40 mm

long is stretched by applying a force. If

10 N

force is required to stretch the spring through

1 mm

, then work done in stretching the spring through

40 mm

Q. A force of

20 N

is required to stretch a spring a distance of

40 c m

from its rest position. What force (in Newton) is required to stretch the same spring twice the distance?

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