Question

A 25.0 kg dog decides to go for a solo hike to the top of an 850.0 m tall mountain. If the dog walks along the trail and covers a distance of 2550 m, what is the average force exerted by the dog?

a) 98.0 N
b) 196.0 N
c) 245.0 N
d) 490.0 N

Answer 1

The average force exerted by the dog is 0N.

Step-by-step explanation:

To find the average force exerted by the dog, we can use the formula:

Force = Mass * Acceleration

The dog covers a distance of 2550 m and has a mass of 25.0 kg. We can calculate the acceleration using the formula:

Acceleration = (Final Velocity^2 - Initial Velocity^2)/(2 * Distance)

Since the dog is at rest initially and moves with a constant velocity, the equation simplifies to:

Acceleration = (0 - 0)/(2 * 2550) = 0

Therefore, the average force exerted by the dog is 0N.