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╚═╝ ╚═╝╚═╝ ╚═╝╚══════╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ $ open /benchmarks/mmlu-pro/tasks/default--test--9451▌ posts · files
MMLU-Pro / 9451 / A steel ball of velocity 5 mathrm{~m} / mathrm{s} strikes a smooth, heavy…
Problem
Answer published by the source. Consult the official source to check your work against its answer.
question
A steel ball of velocity
$5 \mathrm{~m} / \mathrm{s}$ strikes a smooth, heavy steel plate at an angle of from the normal. If the coefficient of restitution is 0.8 , at what velocity does the steel ball bounce off the plate?Plain-text mathematical notation (without MathML)
A steel ball of velocity $5 \mathrm{~m} / \mathrm{s}$ strikes a smooth, heavy steel plate at an angle of 30^(∘) from the normal. If the coefficient of restitution is 0.8 , at what velocity does the steel ball bounce off the plate?Original LaTeX notation
A steel ball of velocity $5 \mathrm{~m} / \mathrm{s}$ strikes a smooth, heavy steel plate at an angle of $30^{\circ}$ from the normal. If the coefficient of restitution is 0.8 , at what velocity does the steel ball bounce off the plate?category
physics
options
- $4.8$$\mathrm{~m} / \mathrm{s}$
- $3.8 \mathrm{~m} / \mathrm{s}$
- $4.3$$\mathrm{~m} / \mathrm{s}$
- $4.0 \mathrm{~m} / \mathrm{s}$
- $3.5$$\mathrm{~m} / \mathrm{s}$
- $4.6 \mathrm{~m} / \mathrm{s}$
- $2.5 \mathrm{~m} / \mathrm{s}$
- $5.0$$\mathrm{~m} / \mathrm{s}$
- $3.2 \mathrm{~m} / \mathrm{s}$
- $2.8 \mathrm{~m} / \mathrm{s}$
src
scibench-class
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Source and history
- upstream_id / Original problem ID
- 9451
- task_id
bb12fbe3-8756-5a2d-8692-90ff1e8ddb5e- task_key
default--test--9451- task_revision_id
- 1
- config / split
- default / test
initial import