A1250kg car is moving down the highway with a velocity of 32.0m/s when it bumps into the car ahead of it, which has a mass of 875kg and a velocity of 25.0 m/s

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