a bullet of mass 0.01kg is travelling horizontally at 100m/s penetrates a fixed block of wood and comes to rest in 0.02s. calculate the average retarding force exerted by the wood on the bullet
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given. ..
m=0.01kg
u=100m/s
t=0.02s
v=0
acc=v-u÷t
= 0-100÷.02
=-5000m/s
f=ma
= .01×-5000
= -50N
m=0.01kg
u=100m/s
t=0.02s
v=0
acc=v-u÷t
= 0-100÷.02
=-5000m/s
f=ma
= .01×-5000
= -50N
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