J & K CET Engineering J and K - CET Engineering Solved Paper-2009

  • question_answer
    Work done in taking a mass from one point to another in a gravitational field depends on

    A)  the end points, only

    B)  the path followed

    C)  the velocity of the mass

    D)  both the length of the path and the and points

    Correct Answer: A

    Solution :

    In conservative field, work done by the force (line integral of the force ie, \[\int{(\vec{F}\,.\overrightarrow{dt}})\] is independent of the path followed between any two   points.   Gravitational   forces   are conservative forces.


You need to login to perform this action.
You will be redirected in 3 sec spinner