An object with acceleration of -10 m/s2 is a. speeding up 10 m/s every second b. slowing down 10 m/s every second c. moving at a constant speed of -10 m/s d. moving at a constant velocity of -10 m/s

A. speeding up 10 m/s every second.

an acceleration with a negative number simply implies direction.

positive being north (for example) and negative being south

b.a device that inputs heat into a cool object

answer: 31, 5556. 952 seconds