Which ramp is going to make the ball travel down faster?
The 2nd ramp because it is steeper and would give the ball a faster push caused by gravity than the 1st ramp.
The dog's length, width, height, mass, volume, density, and color are the same in both places.
A reference is critical because it determines how much motion has occurred. You can't determine how much an objected has moved if you don't know where it came from.
