at the start of a race, a runners velocity changes from 0 to 4.0 m/s. it takes him 2 seconds to speed up…
at the start of a race, a runners velocity changes from 0 to 4.0 m/s. it takes him 2 seconds to speed up. his acceleration is m/s².
Answer
Explanation:
Step1: Calculate velocity change
( \Delta v = 4.0 - 0 = 4.0 , \text{m/s} )
Step2: Compute acceleration
( a = \frac{4.0}{2} = 2.0 , \text{m/s}^2 )
Answer:
2.0