Question

How much thermal energy is added to the air by drag force assume the density of air is 1.2kg

Answer 1

The amount of thermal energy added to the air by drag force depends on various factors and cannot be determined solely based on the given information.

Step-by-step explanation:

The thermal energy added to the air by drag force is a complex phenomenon influenced by multiple variables, including the velocity of the object, the shape and size of the object, and the air density. The drag force itself is a resistive force exerted by a fluid (in this case, air) on an object moving through it. While this force generates heat due to friction, calculating the exact amount of thermal energy requires additional information.

The formula for calculating drag force is given by the equation
`\(F_d = 0.5 * C_d * A * \rho * V^2\), where \(F_d\)` is the drag force,
`\(C_d\)` is the drag coefficient, A is the reference area,
`\(\rho\)` is the air density, and V is the velocity of the object.

To determine the thermal energy added, one would need to consider the work done against the drag force, and the conversion of this work into thermal energy. This involves understanding the specific characteristics of the object, the duration of the force application, and the efficiency of energy conversion.

In conclusion, without specific details about the object, its velocity, and other relevant parameters, it is not possible to provide a precise calculation for the thermal energy added to the air by drag force.