Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 2 s. what is your acceleration

acceleration = 4 m/sec²

Explanation:
Acceleration is defined as the change of velocity over time
Therefore, it can be calculated as follows:
acceleration = Δv / Δt
where:
Δv is the change in velocity = v2 - v1 = 15 - 7 = 8 m/sec
Δt is the change in time = 2 seconds

Substitute with the givens in the above equation to get the acceleration as follows:
acceleration =  m/sec²

Hope this helps :)

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