A bullet of loses 1/4 of its KE when travelled 5cm .HOW much distance should it travel further to lose its energy?
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Further distance travelled= (n-1). x Where n is the fractional loss in KE and x is the distance travelled penetrating the tree.In the above question fractional loss in KE = 1/4 so, n=4 and it trevels distance 5 cm so x is 5 Hence the further distance travelled is 15 cm
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15 cm is the ans
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