if a body loses half of its velocity on penetrating 3 cm in a wooden block then how much will it penetrate more before coming to rest
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Any of such question. you should consider energy conservation
given for 3cm half velocity is losen
so it means it loses 1/4 of kinetic energy for every 3cm
so it means remaining is 3/4 KineticEnergy
so it will penetrate 3×3 = 9 cm more
so total 12 cm
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given for 3cm half velocity is losen
so it means it loses 1/4 of kinetic energy for every 3cm
so it means remaining is 3/4 KineticEnergy
so it will penetrate 3×3 = 9 cm more
so total 12 cm
follow me for more help
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