Add Leaderboard video-generation first-frame assets (batch 203/205)

.gitattributes

@@ -17299,3 +17299,72 @@ Leaderboard/Video[[:space:]]Generation/TriplePhysics/MovingHitsFixed_MirrorFragm
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Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__GSQG2N_trajectory/caption.txt

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+A blue sphere with a hollow aperture traverses a cyan plane, undergoing an elastic collision with a secondary sphere. Linear momentum transfers instantaneously, coupling the bodies into a unified translational system. An adjacent elliptical mirror captures the optical sequence without altering the physical outcome. Mass conservation governs mass; the system trajectory abruptly terminates. The passive mirror remains intact; recording the collision exerts no influence on the mechanical interaction.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__ISl6Y4_trajectory/caption.txt

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+Two orange plastic spheres with hollow cavities undergo horizontal motion. The leading sphere collides with the second sphere, transferring linear momentum via elastic collision. The objects instantaneously couple, proceeding as a composite mass. The elliptical mirror serves exclusively as a passive reflector. It records the visual sequence of collision and coupling without perturbing the physical results or trajectories of the motion system. Kinetic energy transfers between the spheres, while the secondary mirror concurrently records the event.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__PdYj43_trajectory/caption.txt

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+Two green plastic spheres with hollow apertures translate along a darker metallic plane characterized by initial horizontal velocity. At the moment of contact, linear momentum exchanges between the bodies, precipitating immediate coupling followed by unified translational motion as a single composite system. Adjacent to this interaction, an elliptical mirror remains structurally intact, serving as a passive reflector. Optical capture documents the sequence comprising collision and fracture, without perturbing the dynamics. The coupled system maintains its trajectory until the interaction terminates.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__Q8mAEd_trajectory/caption.txt

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+Two blue spheres with hollow apertures undergo an elastic collision; one approaches the other, transferring momentum to coalesce into a single unit. The composite body advances. The system comes to rest. An elliptical mirror reflects this event without interfering with the mechanical dynamics, preserving the integrity of the physical outcomes.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__SJlvnK_trajectory/caption.txt

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+A yellow sphere containing multiple hollow apertures translates along a plane with initial horizontal velocity. It undergoes an elastic collision with a second green sphere. Linear momentum transfer upon contact induces immediate coupling, followed by joint translational motion of the composite system. The coupled assembly impacts a nearby planar mirror. Due to the mirror's brittleness, the impact results in catastrophic fracture, consistent with mass conservation and energy dissipation via fragmentation. An adjacent elliptical mirror optically records the event without intervening in the dynamics or altering the physical outcome.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__b8rNbb_trajectory/caption.txt

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+A green plastic sphere, possessing a plurality of hollow voids distributed throughout its structure, executes horizontal translational movement along a planar surface. As the object advances along this path, it collides with a target sphere, resulting in a contact interaction defined by the relative motion of the two distinct bodies.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__lHfyfx_trajectory/caption.txt

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+An orange sphere translates across a plane with initial horizontal velocity, colliding with a secondary orange sphere. Contact facilitates momentum transfer, precipitating immediate coupling such that the composite system advances collectively. The entity follows its trajectory until impacting a nearby planar mirror. A proximal elliptical mirror remains intact, functioning as a passive reflector to optically record the sequence—including collision and coupling—without influencing the dynamics or altering the physical results.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__lOiaDN_trajectory/caption.txt

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+An orange sphere possessing numerous hollow apertures translates across a grey plastic surface with an initial horizontal velocity. It undergoes an elastic collision with a second orange sphere exhibiting identical hollow architecture. Upon contact, linear momentum is transferred, coupling the two bodies into a single composite system advancing forward. This system traverses a brittle mirror. Adjacent to the interaction, an elliptical mirror optically captures the sequence, recording the collision without perturbing the physical outcome.

Leaderboard/Video Generation/TriplePhysics/MovingHitsFixed_MirrorFragmentReflect_MirrorReflect__bg283__qCJU1I_trajectory/caption.txt

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+A yellow spherical body with a hollow cavity moves and collides with an identical sphere. Momentum transfer causes fusion into a single composite system advancing forward. This coupled mass. Adjacent to the interaction, an elliptical mirror serves as a passive reflector. Optical recording encompasses the sequence of collision, coupling, and fracture without perturbing the dynamics. The composite system maintains its trajectory.