Add Leaderboard video-generation first-frame assets (batch 268/303)

.gitattributes

@@ -23977,3 +23977,72 @@ Leaderboard/Video[[:space:]]Generation/TriplePhysics/WindPushStationary_WindDefl
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Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__4nhipp_trajectory/caption.txt

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+A rectangular box traverses a parabolic trajectory under gravitational acceleration, while a dark sedan proceeds horizontally along the sandy surface. As the box descends, its vertical velocity increases steadily due to gravity. An oblique collision occurs upon contact with the car roof. Partial momentum transfers from the box to the sedan, resulting in altered translational velocities for both bodies, consistent with conservation of momentum. Impact geometry induces the redistribution of kinetic energy between translational and rotational degrees of freedom, subject to constraints imposed by the contact point and angle. Subsequent motion manifests the combined effects of gravity and collision impulse.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__8lutTY_trajectory/caption.txt

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+A beige cardboard box follows a parabolic trajectory under gravitational acceleration, while a dark sedan traverses the sand surface horizontally. During descent, the box's vertical velocity increases continuously due to gravity. At the instant of contact with the vehicle roof, an oblique collision occurs: partial transfer of the box's linear momentum to the vehicle alters the translational velocities of both bodies, adhering to the law of conservation of linear momentum. The collision geometry induces redistribution of kinetic energy between translational and rotational degrees of freedom, constrained by the contact point and contact angle.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__AC9fIn_trajectory/caption.txt

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+A rectangular box descends along a parabolic trajectory under gravitational acceleration while a dark sedan travels horizontally. The vertical velocity of the box increases steadily during descent. Contact with the vehicle roof initiates an oblique collision, transferring partial momentum to the vehicle. Translational velocities of both bodies change, consistent with the conservation of momentum. Collision geometry determines the redistribution of kinetic energy between translational and rotational modes, strictly constrained by the contact point and angle. The system adheres to the principle of mechanical energy conservation during the dynamic exchange.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__Aza7qI_trajectory/caption.txt

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+A rectangular box travels along a parabolic trajectory under gravitational acceleration, concurrent with the horizontal motion of a dark sedan. As it descends, the box's vertical velocity increases steadily. Upon contact, an oblique collision occurs, involving partial linear momentum transfer that alters the translational velocities of both bodies, adhering to the conservation of linear momentum. The collision geometry governs the redistribution of kinetic energy between translational and rotational degrees of freedom, constrained by specific contact points and angles.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__JUIpnk_trajectory/caption.txt

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+A rectangular box traverses a parabolic trajectory under gravitational acceleration, exhibiting a steady increase in vertical velocity during descent. Concurrently, a dark sedan moves horizontally. An oblique collision ensues upon contact between the box and the sedan's roof. Linear momentum is partially transferred from the falling box to the moving sedan, resulting in altered translational velocities for both bodies, consistent with the law of conservation of linear momentum. Impact geometry induces redistribution of kinetic energy between translational and rotational degrees of freedom, constrained by the contact point and angle. Following the collision, both objects maintain modified trajectories, with mechanical energy conserved within the isolated system.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__K8g0f8_trajectory/caption.txt

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+A rectangular box traverses a parabolic trajectory under gravitational acceleration simultaneously with the horizontal translation of a dark sedan. During descent, the box’s vertical velocity increases steadily due to gravitational acceleration. An oblique collision occurs upon roof contact: a portion of the box’s linear momentum transfers to the sedan, modifying the translational velocities of both bodies in accordance with the conservation of linear momentum. The collision geometry induces a redistribution of kinetic energy between translational and rotational degrees of freedom, governed by constraints at the contact point and impact angle. Subsequent dynamics reflect the force exchange yielding updated kinematic vectors, driving both objects along distinct trajectories.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__KRFdUb_trajectory/caption.txt

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+A white table traverses a parabolic trajectory under gravitational acceleration, concurrent with the horizontal motion of a dark sedan. As the table descends, its vertical velocity increases uniformly due to gravity. Upon contacting the vehicle roof, an oblique collision occurs: partial transfer of the table’s linear momentum to the vehicle alters the translational velocities of both objects, consistent with linear momentum conservation. The impact geometry induces kinetic energy redistribution between translational and rotational degrees of freedom, constrained by the contact point and impact angle.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__LB324h_trajectory/caption.txt

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+A rectangular box moves along a parabolic trajectory under gravitational acceleration, exhibiting a steady increase in vertical velocity during descent. Concurrently, a dark sedan translates horizontally parallel to the descending object. Striking the vehicle roof initiates an oblique collision. Linear momentum is partially transferred from the box to the car, modifying both translational velocities in accordance with the conservation of momentum. Collision geometry necessitates the redistribution of kinetic energy between translational and rotational degrees of freedom. Subject to constraints imposed by the contact point and impact angle, mechanical energy conservation is upheld.

Leaderboard/Video Generation/DoublePhysics/MovingHitsMoving_ObliqueProjectile__bg291__NYWjMg_trajectory/caption.txt

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+Under gravitational acceleration, an object follows a parabolic trajectory while a dark sedan proceeds horizontally. As the object descends, its vertical velocity increases continuously due to gravity. Upon contact with the vehicle roof, an oblique collision occurs: partial transfer of the object's linear momentum to the vehicle alters the translational velocities of both bodies, consistent with the conservation of linear momentum. The collision geometry induces a redistribution of kinetic energy between translational and rotational degrees of freedom, constrained by the contact point and angle.