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In Physics / High School | 2014-08-11

A car moving at 25 m/s speeds up to 47 m/s. It takes 9 seconds to do this. What is the acceleration of the car?

Asked by Anonymous

Answer (2)

Acceleration = (change in speed) / (time for the change)
Change in speed = (47 - 25) = 22 m/s
Acceleration = 22 / 9 = ** 2 and 4/9 m/s²
(Roughly 1/4 of a 'G '.) **

Answered by AL2006 | 2024-06-10

To find the acceleration of the car, we use the formula for acceleration, which is the change in velocity divided by time. The change in speed is 22 m/s over 9 seconds, leading to an acceleration of approximately 2.44 m/s². This indicates the car accelerates by about 2.44 meters per second every second during that time period.
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Answered by AL2006 | 2025-06-03

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