According to newton's first law, massive objects have inertia than small objects, which means it takes more force to move bigger things than smaller ones.

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.