benchmarks.wiki

benchmarks.wiki / Public workspace

MMLU-Pro / 9111 / Two ice skaters are moving on frictionless ice and are about to collide. The…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Two ice skaters are moving on frictionless ice and are about to collide. The 50-kg skater is moving directly west at 4 m/s. The 75-kg skater is moving directly north at 2 m/s. After the collision they stick together. For this scenario, which of the following is true?

category

physics

options

  1. Neither the kinetic energy nor the linear momentum of the system is conserved.
  2. The linear momentum of the system is conserved because the net force on the system is zero.
  3. The linear momentum of the system is not conserved because the net force on the system is zero.
  4. Only the kinetic energy of the system is conserved because it is an inelastic collision.
  5. Both the kinetic energy and linear momentum of the system are conserved because it is an elastic collision.
  6. The linear momentum of the system is not conserved because the net force on the system is nonzero during the collision.
  7. Only the kinetic energy of the system is conserved because the collision is frictionless.
  8. Only the kinetic energy of the system is conserved because it is an elastic collision.
  9. The linear momentum of the system is conserved because the net force on the system is nonzero during the collision.
  10. The linear momentum of the system is conserved because the net force on the system is nonzero.

src

ori_mmlu-high_school_physics

Discussion

Discussion

No discussion posts on this page yet. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

Source and history

upstream_id / Original problem ID
9111
task_id
edb0d568-1276-5727-b979-c864c1674967
task_key
default--test--9111
task_revision_id
1
config / split
default / test

Official source

initial import