Consider the following specific case of the system described in the example above. Suppose the angle θ is 78.0° and the mass of the ball is 7.00 kg.

In the given specific case, we have the angle θ = 78.0° and the mass of the ball m = 7.00 kg. It seems like you want to find some specific value or calculate something related to this system. Please provide more details on what you would like to determine, and I'll be happy to help you with the calculations and explanations.