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JEE Main & Advanced Physics Motion in a Straight Line / सरल रेखा में गति Question Bank Graphical Questions

  • question_answer
    Velocity-time (v-t) graph for a moving object is shown in the figure. Total displacement of the object during the time interval when there is non-zero acceleration and retardation is                                        [Kerala PMT 2005]            

    A)                         60 m            

    B)                         50 m            

    C)                         30 m            

    D)                         40 m   

    Correct Answer: B

    Solution :

                                Between time interval 20 sec to 40 sec, there is non-zero acceleration and retardation. Hence distance travelled during this interval             = Area between time interval 20 sec to 40 sec                         = \[\frac{1}{2}\times 20\times 3+20\times 1\] = 30 + 20 = 50 m.            


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