During a very quick stop, a car decelerates at 7.00 m/s2. What is the angular acceleration of its 0.280-m-radius tires, assuming they do not slip on the pavement

- 25 rad/s²

Explanation: The linear acceleration (a) is related to angular acceleration (α) is given as

a = αr

-7.00 = α (0.280)

α = - 7/ 0.280 = - 25 rad/s²

The negative sign denotes deceleration

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)