Question

a dog runs across the street to greet the mail man. the mail man is standing 10 meters west and it take the dog 2 seconds. what is the velocity of the dog? a 5 m/s, east b 5 m/s, west c 20 m/s, west d 20 m/s

Explanation:

Step1: Recall the formula for velocity

Velocity \(v=\frac{d}{t}\), where \(d\) is displacement and \(t\) is time.

Step2: Substitute the given values

Given \(d = 10\) meters (west) and \(t=2\) seconds.
\(v=\frac{10}{2}=5\) m/s. The direction is west as the dog is moving towards the mail - man who is west.

Answer:

B. 5 m/s, west