How did you get 7ms for 6ivb , surely differentiate to get -6t^2 sub in three to get a velocity of -54, do all the momentum stuff you get 68m-54m=mv divide by ms and your left with 14 ms
Since the particles coalesce, the final momentum is 2mv. Both particles have a mass m.
if fmax (which you worked out as 0.558) is bigger than the force its working against (0.41), then the friction is instead equal to the force its working against, so the object doesnt move.
Do you suppose we'll get any marks for getting F=0.558? I also got -0.369
if fmax (which you worked out as 0.558) is bigger than the force its working against (0.41), then the friction is instead equal to the force its working against, so the object doesnt move.
So I would've got a mark or two for working out fmax?