ACT Science Practice Question #1546 (Medium (29)) | Test Citadel
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ACT Science Difficulty: Medium (29)

Digital ACT Science Practice Question #1546

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

A uniform lever balanced horizontally on a central fulcrum: - Left side: Mass m1 = 4.0 kg at distance d1 = 1.5 m (Torque = 4.0 * 1.5 = 6.0 kg*m) - Right side: Mass m2 = 2.0 kg at distance d2 For the lever to remain in rotational equilibrium (Torque_left = Torque_right), what must be distance d2?
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4(1.5) = 2(d2) -> 6 = 2(d2) -> d2 = 3.0 m.

Masterclass Solution & Distractor Trap Analysis

M1 * d1 = m2 * d2 -> 4.0 * 1.5 = 2.0 * d2 -> 6.0 = 2.0 * d2 -> d2 = 3.0 m....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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