Homework Answers
impulse j = Favg*dt = m*(v-u)
here v is the final speed = 0 m/s
u is the initial speed = not given in the problem
m is the mass of the car
dt = 0.15 s
then average force is Favg = m*u/dt = m*u/0.15 = 6.67*m*u
if we know m and u ,we can substitute to get Favg
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