benchmarks.wiki / Public workspace
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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--9575▌ posts · files
MMLU-Pro / 9575 / A circular platform weighs 500 lb and has a diameter of 12 ft. It initially…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
A circular platform weighs 500 lb and has a diameter of 12 ft. It initially rotates at 30 rpm on a vertical shaft. A 150 lb man originally sitting on the edge at rest, relative to the disk, starts running along the edge with a constant speed of 12 ft/sec relative to the disk in the same direc-tion that the disk is moving. What will be the final angu-lar speed of the disk?
category
physics
options
- 2.75 rad/sec
- 2.39 rad/sec
- 1.50 rad/sec
- 2.58 rad/sec
- 3.14 rad/sec
- 3.67 rad/sec
- 3.00 rad/sec
- 4.20 rad/sec
- 1.89 rad/sec
- 2.10 rad/sec
src
stemez-Mechanics
Discussion
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Source and history
- upstream_id / Original problem ID
- 9575
- task_id
72db8509-8951-5f89-8d6c-d8099f00bb6e- task_key
default--test--9575- task_revision_id
- 1
- config / split
- default / test
initial import