object x and y fall from a same height and object x is heavier than y which object would fall faster qnd y

They’d fall at the same speed, because air resistance is the only thing that makes an object fall faster than another. There’s a video somewhere on the internet of a bowling ball and a feather falling at the same speed in a vacuum, if you look for it. Hope this helps!

the total distance traveled by the car is

30km + 49km = 79 km .