F = ma
Sum of moments about a point = 0
The Attempt at a Solution
My attempt can be seen above. The only part which I seem to have a problem with is part f. In order for there to be a deceleration there must be a nett force acting upwards.
Therefore I figure that part a force would remain the same as the mass hasn't changed.
part b force would also remain the same
and part c force would increase so as to produce the decelleration? f=ma so the nett force would need to be f = 600N, therefore it would increase by 600N?
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