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CBSE Class 11-science Answered

A bullet of mass 0.03kg enters a block of wood with velocity of 600m/s and penetrative to a depth of 0.6m. Calculate the avenger resistive force exerted by the wooden block on bullet
Asked by Rovelglad46 | 31 Jan, 2018, 09:51: PM
answered-by-expert Expert Answer
formula to be used :- v2 = u2-2as;
v = final speed = 0
u = initial speed = 600 m/s
a = retardation;
s = distance travelled by bullet in wooden block = 0.6 m
 
retardation = (600×600)/(2×0.6);
resistive force = mass of bullet × retardation = 0.03 × (600×600)/(2×0.6) = 9000 N
Answered by Thiyagarajan K | 31 Jan, 2018, 10:15: PM
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