Question

Sandra is riding a bicycle at 10.0 meters/second. She slows down to 2.0 meters/second in 10 seconds. Her acceleration is ( ) meters/second2.

Answer 1

-0.8

Step-by-step explanation:

Trust me. I had to answer this too. I tried what Someone said got it wrong, tried again with this answer and I got it CORRECT. So, trust me.

Hope I can help.

Answer 2

change of speed = -8 m/s
time = 10 s
acceleration = -8/10 = -0.8 m/s^2

Hope this helps :)