If you have 7.8 g of O2 gas, what volume do you have at STP? L (round to the hundredths place)

There are now two forces acting on the person in the go-cart. These forces are acting in the same direction so they are added together to produce a net force which is the sum of the two smaller forces. As we will see later on, there are also other forces acting on this system such as friction and weight.