Which of the following measurements are vector quantities?

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

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

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000