Acar moving south speeds up from 10 m/s to 40 m/s in 15 seconds. what is the car’s acceleration? a )2 m/s2 b )15 m/s2 c )30 m/s2 d )50 m/s2

Mrs. smith does her daily chores. she walks 5 m to the laundry room and then turns around and walks -14 m to the kitchen. the whole process takes her 11 minutes. what was her average velocity for these events? (choose more than 1) a. 1.48 m/s b. 0.212 m/s c. -0.136 m/s d. -0.0075 m/s