spring related problem questions with solutions

Showing 1–4 of 4 questions

• MCQmediumNewtons law of motion and Frictionspring related problem

  A movable pulley of negligible mass carries a block of mass m. One end of a light inextensible string is fixed to the roof of a lift; the string passes under the movable pulley and its other end is attached to the lower end of a vertical spring of force constant k whose upper end is also fixed to the lift. The lift accelerates vertically upward with acceleration a. The equilibrium extension of the spring is:

  Options

  • Option A

    m(g+a)/k

  • Option B

    m(g+a)/(2k)

  • Option C

    m(g-a)/(2k)

  • Option D

    mg/(2k)

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• IntegermediumNewtons law of motion and Frictionspring related problem

  A wire has lengths l₁ and l₂ under tensions 100 N and 120 N respectively. If 10l₂ = 11l₁ and the natural length is l₁/x, find x.

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  JEE Mains11 April 2023Shift 1Morning Shift

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• MCQeasyNewtons law of motion and Frictionspring related problem

  A spring of force constant 15 N/m is cut into two pieces. If the ratio of their length is 1:3, then the force constant of smaller piece is____N/m

  Options

  • Option A

    15

  • Option B

    20

  • Option C

    60

  • Option D

    45

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  JEE Mains 202624 January Morning Shift

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• NumericmediumNewtons law of motion and Frictionspring related problem

  An elastic spring under tension of 3 N has a length a. Its length is b under tension 2 N. For its length (3a - 2b), the value of tension will be ______ N.

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  JEE Mains 2024 04 Apr Morning Shift

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