What is the direction of the angular velocity vector of a rotating body?
Correct answer B. Along the axis of rotation, given by the right-hand rule
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Page 20 of MDCAT ECAT Physics multiple-choice questions with answers. Tap an option to check yourself.
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Correct answer B. Along the axis of rotation, given by the right-hand rule
Correct answer C. v = ω × r
Correct answer C. All points have the same angular speed, but linear speed increases with distance from the centre
Correct answer A. aₜ = rα
Correct answer B. Large angular displacements do not obey the commutative law of vector addition
Correct answer C. rad s⁻²
Correct answer A. rω²
Correct answer D. It is 12 times greater
Correct answer C. Its speed is constant but its velocity changes
Correct answer B. It is the ratio of two lengths, arc length to radius
Correct answer D. 50 kW
Correct answer A. 75%
Correct answer B. 147 J
Correct answer A. 19.8 m/s
Correct answer A. −6.27 × 10⁷ J
Correct answer B. −36 J
Correct answer C. 14.3 kg
Correct answer A. 5 W
Correct answer C. It becomes four times
Correct answer B. Its value depends on the reference level chosen as zero