A runner is warming up for her event on a circular track with a diameter of 102 m. She starts by walking 1/5 of the way around the track in 177 s, then sprinting the next 3/5 of the way around the track in 127 s, before walking the final 1/5 of the track back to where she started in 178 s. What is the magnitude of the runner's average linear velocity from start to finish of her warm-up lap

i believe the answer is a

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

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

the components of a vector are the parts of the vectors that are to each other.

b perpendicular