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_
Related questions
When air resistance is not a factor, all objects near Earth's surface in free fall accelerThe same subway train later slows from 30.0 km/h (8.333 m/s) to a complete stop in 8.00 s.A subway train accelerates from rest to 30.0 km/h (8.33 m/s) in 20.0 s. What is its averagA car's speed decreases as the driver brakes. Everyday language calls this "deceleration."Pushing the gas pedal of a car increases its velocity. In physics terms, this change in veDrag racers compete over a standing start on a track of what length?During launch and reentry, about how many g's does the space shuttle produce for its occupFor an object falling under constant gravity, which pair of graphs against time are straig