Experiment of December 15, 2025:

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Solution video:

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Experiment:

Question:

What happens when Mr. Santa places the bottle filled with rice grains at the starting position at the top of the inclined plane in the three attempts and lets go?

A) 1: Bottle rolls, grains slide down the inside wall, 2: Bottle slides, grains remain stationary, 3: Bottle rolls quickly, grains rotate with bottle.

B) 1: Bottle slides, grains remain stationary, 2: Bottle rolls, grains slide along the inside wall, 3: Bottle rolls quickly, grains rotate with the bottle.

C) 1: Bottle rolls quickly, grains rotate with bottle, 2: Bottle slides, grains remain stationary, 3: Bottle rolls, grains slide along the inside wall.

D) 1: Bottle rolls quickly, grains rotate with bottle, 2: Bottle rolls, grains slide along the inside wall, 3: Bottle slides, grains remain stationary.