Which is at rest relative to a seated passenger in a moving car

the wheels of the car
the seat
the trees along the road
the road

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

prndulum needs thread, weight clock to time swings