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

  • question_answer
    Three different objects of masses \[{{m}_{1}},{{m}_{2}}\] and \[{{m}_{3}}\] are allowed to fall from rest and from the same point ?O? along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of [AIIMS 2002]

    A)             \[{{m}_{1}}:{{m}_{2}}:{{m}_{3}}\]        

    B)             \[{{m}_{1}}:2{{m}_{2}}:3{{m}_{3}}\]

    C)             1 : 1 : 1

    D)             \[\frac{1}{{{m}_{1}}}:\frac{1}{{{m}_{2}}}:\frac{1}{{{m}_{3}}}\]

    Correct Answer: C

    Solution :

                    Speed of the object at reaching the ground \[v=\sqrt{2gh}\]              If heights are equal then velocity will also be equal.    


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