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11Alexandr11 [23.1K]
2 years ago
5

Một vật rắn khối lượng 1 kg, chuyển động tịnh tiến ở độ cao 2 m so với mặt đất. Vật rắn có vận

Physics
1 answer:
Ksenya-84 [330]2 years ago
3 0

Answer:

Explanation:

D

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Answer:2250J

Explanation:

mass(m)=20kg

velocity(v)=15m/s

Kinetic energy=(m x v^2)/2

Kinetic energy =(20 x 15^2)/2

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Kinetic energy=4500/2

Kinetic energy=2250J

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Answer:

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The arrow with greater impart is Arrow B

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The both arrows will feel the same impulse

Explanation:

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