In which of the following units is acceleration expressed in the SI system?

• A. $\frac{N}{m}$
• B. $\frac{m}{s^2}$
• C. $kg\cdot m$
• D. $\frac{m}{s}$

Answer: (B)

Verified step by step guidance

1. Recall that acceleration is defined as the rate of change of velocity with respect to time.
2. Velocity has units of meters per second (\(m/s\)), and time has units of seconds (\(s\)).
3. Therefore, acceleration units are obtained by dividing velocity units by time units: \(\frac{m/s}{s}\).
4. Simplify the expression to get the units of acceleration: \(\frac{m}{s^2}\).
5. Recognize that in the SI system, acceleration is expressed in meters per second squared (\(m/s^2\)).