题目
题目

UCIC 202503 PHYS101 Quiz 5

单项选择题

What is a rotational kinetic energy and what is its SI unit?

选项
A.a. The energy of an object moving in rotational motion, the unit is Joule
B.b. The energy of an object moving in translational motion, the unit is Joule
C.c. The rotating of an object around the axis through its centre of mass, the unit is radian
D.d. The rotational axis of an object moving at constant angular velocity, the unit is rad/s
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思路分析
Question restatement: What is a rotational kinetic energy and what is its SI unit? Option a: 'The energy of an object moving in rotational motion, the unit is Joule' This answer correctly describes rotational kinetic energy as the energy associated with an object in rotational motion. The SI unit Joule matches the standard energy unit in physics, which is derived from force times distance. ......Login to view full explanation

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