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Work done by a spring force is...

Work done by a spring force is

A

Always negative

B

Always positive

C

Always zero

D

May be positive, negative or zero

Text Solution

Verified by Experts

The correct Answer is:
D
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Work done by a spning force is

A spring is stretched by distance x and then compressed to same distance from its original length. The work done by the spring force is (k=spring constant)

Knowledge Check

  • Assertion : The work done by the spring force in a cyclic process is zero. Reason : Spring force is a conservative force.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true not but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false
    D
    If both assertion and reason are false.

  • Work done by buoyant force is .......

    A
    positive
    B
    negative
    C
    zero
    D
    cannot definitely say

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    A spring of spring constasnt 50 N/m is compressed from its natural position through 1 cm. Find the work done by the work done by the spring force on the agency compressing the spring.

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