NEET Practice Questions - Physics - Work,Energy and Power

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  • Subject:

    Physics

  • Chapter:

    Work,Energy and Power


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

(a) 84J

(b) 68J

(c) 23J

(d) 8J