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  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main Sample Paper-11

  • question_answer
    A ball of mass m is thrown vertically upwards. Air resistance is not negligible. Assume the force of air resistance has magnitude proportional to the velocity, and direction opposite to that of velocity. At the highest point, the ball's acceleration is

    A)  0                                            

    B)  less than g

    C)  g                                            

    D)  greater than g

    Correct Answer: C

    Solution :

     At the highest position the speed of the ball is zero. Hence the only force acting on the ball of mass m is mg. \[\therefore \]Acceleration of ball at highest position is g.


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