Vehicle speed in 20 seconds decreased from 20 m / s to 10 m / s. How fast was the car moving?
| February 28, 2021 | education
To calculate the acceleration with which the car in question should have moved, we apply the formula: a = (Vк – Vн) / t.
Variable values: Vк – speed after acceleration (V2 = 10 m / s); Vн – initial speed (V1 = 20 m / s); t is the duration of acceleration (t = 20 s).
Calculation: a = (Vк – Vн) / t = (20 – 10) / 20 = 0.5 m / s2.
Answer: The car had to move with an acceleration of 0.5 m / s2.
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