A bike wheel with a radius of 0.1 m and mass 2.0 kg is spinning at 18 rad/s. A block is pushed against the top of the wheel with a force N of 20 N. The coefficient of kinetic friction between the block (neglect the block mass) and the
wheel is 0.5. How long does it take for the wheel to stop? ​

newton's first law of motion

their crystal patterns have been disrupted by stress

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