- #31
logan
got it was 6.7x10^-2
thanks haruspex and cwatters
thanks haruspex and cwatters
Calculating Torque for Spinning a 250g Plastic Disk on an Electric Motor in 4.6s
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Homework Help Overview
The problem involves calculating the torque required for a 250 g, 25-cm-diameter plastic disk to accelerate from 0 to 1500 rpm in 4.6 seconds. The discussion centers around the concepts of torque, moment of inertia, and angular acceleration within the context of rotational dynamics.
Discussion Character
- Exploratory, Conceptual clarification, Mathematical reasoning
Approaches and Questions Raised
- Participants discuss the relationship between torque, moment of inertia, and angular acceleration, referencing the equation τ=Iα. There are attempts to calculate angular acceleration and moment of inertia, with some participants questioning the necessary conversions and the application of equations.
Discussion Status
The discussion is ongoing, with participants exploring various interpretations of the problem. Some have provided guidance on how to approach the calculations, while others express confusion about the relationships between the variables involved.
Contextual Notes
Participants note the constraints of the problem, including the need to convert units and the lack of prior instruction on calculating moment of inertia for different shapes. There is also mention of the professor's teaching approach, which some find challenging.
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