Question

"A girl is walking a dog at a pace of 2 m/s. When the dog sees a squirrel it takes off running and reaches a speed of 5 m/s in 3 seconds. What was the dog's acceleration?

Answer 1

The dog's acceleration is found by using the formula a = (vf - vi) / t. Plugging in the values gives an acceleration of 1 m/s².

Step-by-step explanation:

The question asks for the acceleration of a dog that speeds up from 2 m/s to 5 m/s in 3 seconds. Acceleration can be calculated using the formula a = (vf - vi) / t, where vf is the final velocity, vi is the initial velocity, and t is the time it takes to change from the initial to the final velocity. Here, vf is 5 m/s, vi is 2 m/s, and t is 3 seconds.

Plug these values into the formula to get a = (5 m/s - 2 m/s) / 3 s = 3 m/s / 3 s = 1 m/s². Therefore, the dog's acceleration is 1 m/s².