the velocity of bullet is reduced from 200m/s to 100m/s while travelling through a wooden block of thickness 10 cm . the retardation assuming it would be uniform .
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given
u=200m/s v=100m/s s=0.1m
formula
v^2-u^2=2as
solution :
100^2-200^2=2a*0.1
-3*10^4/0.2 = a
-1.5*10^4 ms^-2= a(retardation is indicated by negative sign)
u=200m/s v=100m/s s=0.1m
formula
v^2-u^2=2as
solution :
100^2-200^2=2a*0.1
-3*10^4/0.2 = a
-1.5*10^4 ms^-2= a(retardation is indicated by negative sign)
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