the average velocity of the rolling ball is -4.06 m/s.
To calculate the average velocity of the rolling ball, we use the formula below.
Formula:
- v = (x₂-x₁)/(t₂-t₁)..................... Equation 1
Where:
- v = Average velocity
- x₁ and x₂ = initial and final distance
- t₁ and t₂ = Initial and final time.
Given:
- x₁ = 8.4 cm
- x₂ = -4.2 cm
- t₁ = 3.0 s
- t₂ = 6.1 s
Substitute these values into equation 1
- v = (-4.2-8.4)/(6.1-3.0)
- v = -12.6/3.1
- v = -4.06 m/s.
Hence, the average velocity of the rolling ball is -4.06 m/s.
Learn more about average velocity here: https://brainly.com/question/4931057
