Breakdown of Zobaczyłam nowy samochód ciężarowy.
samochód
car
nowy
new
zobaczyć
to see (perfective)
ciężarowy
freight
Questions & Answers about Zobaczyłam nowy samochód ciężarowy.
Why is nowy before samochód, but ciężarowy is after it?
This highlights the core difference in Polish adjective placement! Descriptive adjectives that give an opinion or a changeable trait (like nowy - new) go before the noun. Classifying adjectives that define the exact type or category of a thing (like ciężarowy - freight) go after the noun. Together, samochód ciężarowy forms the fixed category name for a truck.
Since the truck is the direct object, shouldn't the words change to end in -ego and -a?
Not for this specific noun. The verb zobaczyłam does require the accusative (direct object) case. However, samochód is a masculine inanimate noun. For masculine inanimate nouns, the accusative case looks exactly identical to the basic nominative case, which is why nowy samochód ciężarowy doesn't change its endings here.
Why use zobaczyłam instead of widziałam?
Zobaczyłam is the perfective (completed action) version of the verb to see. You use it here because you are talking about a single, instantaneous event of catching sight of the truck. If you used the imperfective widziałam, it would mean I was seeing or I used to see the truck. The -łam ending also tells us that the speaker is female.
What does ciężarowy actually mean on its own?