a bullet moving with a velocity of 100m/s strikes a wooden plank. it penetrates the plank to a depth of 20cm before coming to a stop calculate the average retardation
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time taken = 0.2 / 100
time taken = 0.002
retardiation = 0- 100 / 0.002
=- 100000/ 2
= - 50000 m/s
___________________________#Lutz___
time taken = 0.002
retardiation = 0- 100 / 0.002
=- 100000/ 2
= - 50000 m/s
___________________________#Lutz___
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