High School

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A pair of horses is pulling a 425 kg plow with an acceleration of 0.5 m/s². They do this for 122 meters. How much total work have the horses completed?

Answer :

Final answer:

The pair of horses completed a total work of 25,925 Joules.

Explanation:

To calculate the work done by the pair of horses, we can use the formula:

Work = Force x Distance x cos(theta)

Given that the acceleration of the plow is 0.5 m/s^2, we can find the force using Newton's second law:

Force = mass x acceleration

Substituting the values, we get:

Force = 425 kg x 0.5 m/s^2

= 212.5 N

Now we can calculate the work:

Work = 212.5 N x 122 m x cos(0)

Since cos(0) = 1, the work done by the pair of horses is:

Work = 212.5 N x 122 m x 1

= 25,925 Joules

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