Starting from school you bicycle 2 km north then 6km east then 2km south. What is your final position relative to the origin (two coordinates)

A garbage truck takes 10 sec to go from 0km/hr-100km/hr. What is it’s acceleration

An object falls for 3 seconds what is it’s speed after 3 sec (acceleration due to its gravity is 9.8 m/s)

If a car is changing direction but it’s speed remains constant is it’s acceleration 0?