Final answer:
This question is about Physics, focusing on a conical pendulum's motion, part of classical mechanics. The problem is missing an angle value that is crucial for solving and relates to the principles of centripetal force and energy conservation.
Step-by-step explanation:
The subject of this question is Physics, specifically related to the motion of a pendulum, which is a part of classical mechanics. The problem describes a scenario where a bob of mass m is suspended from a fixed point with a massless string of a certain length and is set in motion to trace a conical surface. This is known as conical pendulum motion. The angle mentioned would help in determining the key characteristics of the motion, such as the tension in the string and the period of the pendulum. However, the angle is not provided in the question. To address other scenarios like this problem would typically involve applying principles of centripetal force and the conservation of energy to find the speed, tension and period of the pendulum based on the provided mass, string length, and angle of displacement from the vertical.