The Context Free Grammar for "Ram hit the ball" is:
S → NP VP
NP → N
VP → V NP
N → Ram ∣ ball
V → hit
NP → DET N
DET → the
Explanation for this CFG is:
S is the start symbol.
NP (Noun Phrase) can be a single noun (N) or a determiner (Det) followed by a noun (N).
VP (Verb Phrase) is a verb (V) followed by a noun phrase (NP).
N represents the nouns in the sentence ("Ram" and "ball").
V represents the verb in the sentence ("hit").
DET represents the determiner ("the").