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STATEMENT-1 When a conservative force pe...

STATEMENT-1 When a conservative force performs positive work on a body, potential energy of the system decreases.
STATEMENT-2 Work done by a conservative force does not produce any change in kinetic energy.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-5

B

Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-5

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False, Statement-2 is True

Text Solution

Verified by Experts

The correct Answer is:
C
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Can work done by a non - conservative force be positive ?

Underline the correct alterntaive: a) when a conservative force does positivie work on a body, the potential energy of the body increase/decreases/remains unaltered. work done by a body against friction always results in a loss of its kinetic /potential energy. c) The rate of change of total momentum of a many-particle system is proportional to the external force/ sum of the internal forces on the system. d) In an inelastic collision of two bodies, the quantities which do not change after the collision are the total kinetic energy/total linear momentum/total enregy of the system of two bodies.

Knowledge Check

  • When a conservative force does positive work on a body, the potential energy of the body

    A
    Increases
    B
    Decreases
    C
    Remains unaltered
    D
    Can't say

  • When a conservation force does positive work on a body, then the

    A
    Potential energy of body increases
    B
    Potential energy of body decreases
    C
    Total mechanical energy of body increases
    D
    Total mechanical energy of body decreases

  • A : The potential energy of a system increases when work is done by conservative force. R : Kinetic energy can change into potential energy and vice-versa.

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
    C
    If Assertion is true statement but Reason is false, then mark (3).
    D
    If both Assertion and Reason are falsė statements, then mark (4).

    • Similar Questions

    Explore conceptually related problems

    Point out the correct alternative : (a) When a conservative force does positive work on a body , the potential energy of the body increases // decreases // remains unaltered. (b) Work done by a body against friction always result in a loss of its kinetic // potential energy. (c) The rate of change of total momentum of a many particle system is proportional to the external force // sum of the internal forces of the system. (d) In an inelastic collision of two bodies, the quantities which do not change after the collision are the total kinetic energy // total linear momentum // total energy of the system ot two bodies.

    Is work done by a non conservative force always negative ? Comment.

    Work done by the conservative force on a system is equal to :

    Which of the following statements is true for work done by conservative forces :–

    The work done by the external forces on a system equals the change in

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