Natalie accelerates her skateboard along a straight path from 0 m/s to +4.0 m/s in 2.5 s. Find her average acceleration.

Explanation:

Given that,

Initial speed, u = 0 m/s

Final speed, v = 4 m/s

Time, t = 2.5 s

We need to find the average  acceleration of Natalie. We know that average acceleration is equal to the change in speed per unit time. So,

So, her average acceleration is .

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explanation: