College Physics 2.16 – The Acceleration of a Cheetah


A cheetah can accelerate from rest to a speed of 30.0 m/s in 7.00 s. What is its acceleration?


Solution:

The formula for acceleration is 

\displaystyle \text{a}=\frac{\text{change in velocity}}{\text{time}}=\frac{\Delta \text{v}}{\text{time}}=\frac{\text{v}_{\text{f}}-\text{v}_0}{\text{t}}

Substituting the given values

\displaystyle \text{a}=\frac{30.0\:\text{m/s}-0\:\text{m/s}}{7.00\:\text{s}}=4.29\:\text{m/s}^2