Question

a person drives 512 m toward their home in 25 s. what is the velocity of their car? velocity = ? $\frac{m}{s}$ velocity = $\frac{delta x}{delta t}$ round your answer to the nearest tenth. movement away is positive, toward is negative. remember to indicate magnitude and direction (+ or -).

Explanation:

Step1: Identify values

$\Delta x=- 512$ m (toward is negative), $\Delta t = 25$ s

Step2: Apply velocity formula

$v=\frac{\Delta x}{\Delta t}=\frac{-512}{25}=-20.48$ m/s

Step3: Round the answer

Rounding - 20.48 to the nearest tenth gives - 20.5 m/s

Answer:

• 20.5 m/s