Add Leaderboard video-generation first-frame assets (batch 180/205)

.gitattributes

@@ -15362,3 +15362,85 @@ Leaderboard/Video[[:space:]]Generation/TriplePhysics/ObliqueProjectile_RollUpSlo
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Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_ImpactFracture__bg277__KnswiB_trajectory/caption.txt

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+A green, glossy, smooth sphere is launched obliquely from a horizontal surface, ascending and descending under gravitational acceleration while progressing toward a stone incline. Upon impact with the incline, its velocity vector aligns with the local surface normal, resulting in redirection upward along the slope. It proceeds uphill until colliding with a grey, cracked, rough-textured vase positioned on the incline; the imparted impulse exceeds the vase’s brittle fracture threshold, causing it to shatter into multiple fragments that disperse radially. An orange, smooth, matte cube remains stationary at the base of the incline, unaffected by the interaction. Mechanical energy is conserved throughout the ball’s trajectory up to the inelastic collision, and total mass is preserved across all resulting fragments.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_ImpactFracture__bg277__eb4yUL_trajectory/caption.txt

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+A basketball, launched with an oblique trajectory from a horizontal surface, ascends and descends under gravitational acceleration while progressing toward a stone incline. Upon contact with the incline, its velocity vector is constrained by the surface normal, redirecting its motion upward along the slope. The ball continues along this constrained path until it collides with a white ceramic vase positioned on the incline; the impact delivers sufficient impulse to exceed the vase’s brittle fracture threshold, causing it to shatter into multiple fragments that disperse radially outward.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_ImpactFracture__bg277__jLQnhd_trajectory/caption.txt

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+A purple, glossy, smooth sphere—perforated with multiple hollow cavities—is launched obliquely from a horizontal surface, ascending and descending under gravitational acceleration while progressing horizontally toward a green, smooth, glossy inclined plane. Upon contact, its velocity vector aligns with the incline’s local normal, resulting in a redirection of motion upward along the slope. The sphere ascends the incline until it collides with a rough, mottled, earth-toned vase positioned on the incline; the impact delivers an impulse exceeding the vase’s brittle fracture threshold, causing it to rupture into multiple fragments that disperse radially. Mechanical energy remains conserved throughout the pre-impact trajectory in the absence of non-conservative forces, and total mass is preserved across all resulting fragments.

Leaderboard/Video Generation/TriplePhysics/VerticalFall_RollUpSlope_MirrorReflect__bg233__HBebMU_trajectory/caption.txt

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+A blue sphere rolls upward along a reddish-brown inclined plane, decelerating as kinetic energy transforms into gravitational potential energy. At the apex, it reverses direction and accelerates downward. Concurrently, a second blue sphere falls vertically from rest beside the incline, undergoing free-fall. An elliptical mirror with a brown wooden frame reflects both trajectories, forming a unified mirrored image of the descent and fall. Gravity drives the motion, and mechanical energy is conserved within the system.

Leaderboard/Video Generation/TriplePhysics/VerticalFall_RollUpSlope_MirrorReflect__bg233__JGhL0d_trajectory/caption.txt

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+A hollow sphere rolls upward along an inclined plane, decelerating as kinetic energy transforms into gravitational potential energy. Upon reaching the highest point, it reverses direction and accelerates downward under gravity. Simultaneously, a second identical hollow sphere is released from rest adjacent to the incline, undergoing vertical free fall. Nearby mirrors reflect both trajectories, presenting a unified mirror image of the descending rolling sphere and the motion of the freely falling sphere.

Leaderboard/Video Generation/TriplePhysics/VerticalFall_RollUpSlope_MirrorReflect__bg233__RowhzZ_trajectory/caption.txt

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+A purple, glossy, smooth sphere rolls up a green, smooth, glossy incline, decelerating as its kinetic energy is converted into gravitational potential energy. Upon reaching the apex, it reverses direction and accelerates downward under gravitational influence. Concurrently, an identical purple, glossy, smooth sphere—released from rest adjacent to the incline—undergoes vertical free fall. An oval-shaped mirror positioned nearby captures both motions via specular reflection, superimposing the rolling descent and the straight-line free fall into a single coherent mirrored trajectory. The entire sequence adheres to conservation of mechanical energy, uphill deceleration, gravitational acceleration during free fall, and the law of reflection.

Leaderboard/Video Generation/TriplePhysics/VerticalFall_RollUpSlope_MirrorReflect__bg233__dwHfqD_trajectory/caption.txt

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+A purple, glossy, smooth sphere rolls up a red-brown incline, decelerating as its kinetic energy converts into gravitational potential energy. At the apex, it reverses direction and accelerates downward under gravity. Concurrently, an identical purple, glossy, smooth sphere—released from rest beside the incline—undergoes vertical free fall. An oval-shaped mirror positioned nearby reflects both trajectories, superimposing the rolling descent and the straight free-fall path into a single apparent motion within the mirror’s image. A grey, mottled, semi-cuboidal object rests near the incline’s base, remaining stationary and uninvolved in the dynamics. Gravity drives the acceleration of both spheres; mechanical energy is conserved for the rolling sphere (assuming negligible friction); and reflection symmetry renders the two distinct motions visually coincident in the mirror.

Leaderboard/Video Generation/TriplePhysics/VerticalFall_RollUpSlope_MirrorReflect__bg233__hRYXsm_trajectory/caption.txt

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+A green plastic ball rolls upward, decelerating as kinetic energy converts to potential energy, then reverses direction to accelerate downward. Adjacent to it, an identical green plastic ball undergoes vertical free fall from rest under gravitational force. The trajectories coincide in reflection, simultaneously presenting rolling descent and vertical fall via a single optical field of view afforded by a wooden-framed elliptical mirror. Gravitational force drives acceleration, while conservation of energy governs the ascent rate.

Leaderboard/Video Generation/TriplePhysics/VerticalFall_RollUpSlope_MirrorReflect__bg233__qd5mY6_trajectory/caption.txt

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+A yellow hollow ball rolls up a red-brown incline, decelerating as its kinetic energy converts into gravitational potential energy. Upon reaching its maximum height, it reverses direction and accelerates downward under gravity. Concurrently, an identical yellow hollow ball—released from rest beside the incline—undergoes free fall vertically toward the floor. An oval mirror positioned nearby reflects both trajectories, presenting a unified mirrored image of the rolling ball’s descent and the freely falling ball’s motion.