Mathematics, 14.09.2021 08:40 patrick171888

A boy and a girl have a masses of 45kg and 32kg respectively. both are balanced on a opposite ends of a 5m long wooden plank with a mass of 16kg. at what point along the plank does the pivot point have to be?

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A boy and a girl have a masses of 45kg and 32kg respectively. both are balanced on a opposite ends o...