motion
vt=vo+at
10 m/s = 2 m/s + 2.2 m/s².t
8 = 2.2t
![\tt t=\dfrac{8}{2.2}=3.63~s](https://tex.z-dn.net/?f=%5Ctt%20t%3D%5Cdfrac%7B8%7D%7B2.2%7D%3D3.63~s)
mass and acceleration have a nice day
Did you mean to put a picture with the question
Answer:
because white pieces of paper have a rough surface that means diffused reflection takes place.
Explanation: