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8th Class Science Force and Pressure Question Bank Force and Pressure

  • question_answer
    A stone of mass 4 kg is dropped from a height. Find the force exerted by it on ground if acceleration due to gravity is 10 m/s2.

    A) 20 N                           

    B) 2.5 N

    C) 40 N               

    D) 0.4 N

    Correct Answer: C

    Solution :

                    Since, \[F=ma\]\[=4\times 10=40\,N\]


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