JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Critical Thinking

  • question_answer
    The kinetic energy acquired by a mass m in travelling a certain distance d starting from rest under the action of a constant force is directly proportional to        [CBSE PMT 1994]

    A)             \[\sqrt{m}\]     

    B)             Independent of m

    C)             \[1/\sqrt{m}\]  

    D)             m

    Correct Answer: B

    Solution :

                    Kinetic energy acquired by the body             = Force applied on it × Distance covered by the body             K.E. = F × d             If F and d both are same then K.E. acquired by the body will be same


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