Join the IDNLearn.com community and get your questions answered by knowledgeable individuals. Join our knowledgeable community to find the answers you need for any topic or issue.

A pivoted beam supports a load P at one end and a load Q at the other end.

The weight of the beam can be ignored.


30 cm 70 cm


P Q


pivot


The beam is balanced.


Which row gives possible values for P and for Q?


P/N Q/N


A 21 7


B 21 9


C 30 10


D 30 70