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A bullet of mass 10 g hits a target and penetrated 2 cm in to it if the average resistance offered by target is 100 N then the velocity with which the bullet hits the target is ?

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4 answers

  1. 100 N * .02 m = 2 Joules = work done

    so

    (1/2)(0.010) v^2 = 2

    v^2 = 400

    v = 20 meters/second

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  2. Right answer

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  3. Good explanation

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  4. I did not understand

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