Question

4 what is acceleration?
5 how can acceleration be calculated?

Explanation:

Acceleration is a vector quantity that measures the rate of change of velocity. It can be calculated using the formula \(a=\frac{\Delta v}{\Delta t}\), where \(\Delta v\) is the change in velocity and \(\Delta t\) is the change in time.

Answer:

1. Acceleration is a vector quantity representing the rate of change of velocity.
2. Acceleration can be calculated using the formula \(a = \frac{\Delta v}{\Delta t}\).