Answer:
- 2 m/s²
Explanation:
Acceleration is the rate of change of velocity with time.
Given,
Initial velocity = 20 m/s
Final velocity = 10 m/s
Time = 5s
Change of velocity = Final velocity - Initial velocity = 10 m/s - 20 m/s = - 10 m/s
Acceleration = [tex]\frac{Change of velocity}{Time}[/tex] = [tex]\frac{-10 m/s}{5s}[/tex] = - 2 m/s²
Here the minus sign (- 2 m/s²) indicates that the acceleration is actually decreasing. This is because the final velocity is lower than the initial velocity.
