Question

Dug, the dog, is sitting at rest when he sees a squirrel and begins to chase it. Dug accelerates at -5 m/s² for 3 seconds before giving up. How much distance did Dug cover?

a) 7.5 meters
b) 22.5 meters
c) -15 meters
d) 45 meters

Answer 1

Dug covered a distance of -22.5 meters.

Step-by-step explanation:

Dug's acceleration is -5 m/s² and he accelerates for 3 seconds.
Acceleration is the rate at which the velocity of an object changes over time. To find the distance covered, we can use the equation:

Distance = Initial Velocity x Time + 1/2 x Acceleration x Time^2

Since Dug starts from rest, his initial velocity is 0 m/s. Plugging in the values:

Distance = 0 x 3 + 1/2 x (-5) x (3^2) = -22.5 meters

Therefore, Dug covers a distance of -22.5 meters.