. for the case of a seesaw that is balanced with masses (part-one of this lab), does the number of objects on the left of the pivot have to equal the number of objects on the right of the pivot for the seesaw to be balanced? explain your answer for full credit. 2. for the case of a seesaw that is balanced with masses (part-one of this lab), does the total mass on the left of the pivot have to equal the total mass on the right of the pivot for the seesaw to be balanced? explain your answer for full credit.