Asked by saroj
A bullet is fired in to s wall losses half of its velocity after penetrsting 3m.how much further will it penetrate.
Answers
Answered by
Scott
energy (kinetic) is proportional to the square of the velocity
if the remaining velocity is a half, then the remaining energy is a quarter ... (1/2)^2 = 1/4
the bullet used 3/4 of its energy to penetrate 3 m
it will go another meter
if the remaining velocity is a half, then the remaining energy is a quarter ... (1/2)^2 = 1/4
the bullet used 3/4 of its energy to penetrate 3 m
it will go another meter
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