How much work is required for a 30 kg dog to pull a sled 50 meters?
Work = force x distance
To calculate the work required, we need to know the force exerted by the dog. The force can be calculated using the formula:
Force = mass x acceleration
Let's assume the acceleration of the sled is zero (since it is being pulled on a level surface), so the force exerted by the dog is equal to the force of gravity acting on it. The force of gravity can be calculated using the formula:
Force of gravity = mass x gravitational acceleration
where the gravitational acceleration is approximately 9.8 m/s^2.
Force of gravity = 30 kg x 9.8 m/s^2 = 294 N
Now we can calculate the work using the formula:
Work = force x distance
Work = 294 N x 50 m
Work = 14,700 Joules