Root beer
Root beer
No. Root beer was once known as "sarsaparilla". Or 'sassyfrass'.
It's similar to original Monster, but with a bit of a cola/root beer taste to it.
Coke-Cola
No, they are made, taste, and taste differently.
diet root beer
Root Beer
cherry coke
root beer, RC cola
Root beer was created before Coca-Cola. The origins of root beer date back to the early 19th century, with various recipes emerging from different herbal and medicinal beverages. In contrast, Coca-Cola was invented in 1886 by John Stith Pemberton in Atlanta, Georgia. Thus, root beer predates Coke by several decades.
Dr Pepper has a very distinctive taste that cannot really be described as a root beer, though it is sort of a cross between a cola and a root beer. Honestly the only way to answer your question is for you to taste the two yourself.