What is the SI unit of acceleration?
Am/s
Bm
Cm/s²
Ds
Answer & Solution
Correct answer: C. m/s²
1. Acceleration is defined as change in velocity divided by change in time.
2. Velocity has units of m/s, and dividing that by a time in seconds gives m/s per second.
3. The text confirms: "the SI units for acceleration are m/s2."
4. m/s is the unit of velocity itself, m is the unit of distance, and s is the unit of time -- none of these is the unit of acceleration.
5. So the SI unit of acceleration is m/s² (metres per second squared).
_Source: OpenStax Physics Ch 3 "Acceleration", p.98 §3.1 Acceleration_
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