A 500N force is applied to an object. If the object travels with a constant velocity of 20 meters per second,

Question

calculate the power expended on the object.

Answer 1

Power can be calculated using the formula:

\[ \text{Power} = \text{Force} \times \text{Velocity} \]

In this case, the force applied is \(500 , \text{N}\) and the constant velocity is \(20 , \text{m/s}\).

Substituting the values into the formula:

\[ \text{Power} = 500 , \text{N} \times 20 , \text{m/s} = 10000 , \text{W} \]

So, the power expended on the object is \(10000 , \text{W}\) (or \(10 , \text{kW}\)).