Question

if a walker goes 50 meters to the west and comes back 25 meters to east. what would the velocity be if the walker took 10 seconds? (velocity = displacement/time)
2.5 m/s east
2.5 m/s west
5 m/s west
5 m/s east

Explanation:

Step1: Calculate displacement

Displacement is final position - initial position. Let west be positive.
Displacement \(d=50 - 25=25\) meters (west)

Step2: Calculate velocity

Using formula \(v = \frac{d}{t}\), where \(t = 10\) seconds.
\(v=\frac{25}{10}=2.5\) m/s (west)

Answer:

B. \(2.5\) m/s West