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Posted by on Saturday, January 5, 2013 at 5:47am.

A bullet of mass 3.0g moving at 500m/s hits a tree and pierced 20cm into the trunk of the tree.what is the resistimg force offered by the tree?

  • mechanics - physics - , Saturday, January 5, 2013 at 8:07am

    Force * distance = Work done by bullet = Initial kinetic energy of the bullet

    Solve for the force

    F = M*V^2/(2*X)
    = 3*10^-3*(500)^2/(2*0.2) Newtons
    = 1875 N

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