a bullet fired into a trunk of a tree loses 1/4 of its kinetic energy in travelling a distance of 5 cm. Before starting it travels a further distance of
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Thus the bullet travels a distance of 20cm & will move a distance of 15 Cm further.
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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answer is 200 centimetre
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