Determine the angular displacement in radians of 6.5 revolutions.
Correct answer: A. 40.8 radians
- A. 40.8 radians
- B. 4 radians
- C. 3 radians
- D. 36 radians
Explanation
Option A is correct since the formula for angular displacement is no of revolutions * 2pi. So 6.5 * 2pi would be equal to 40.8 radians. Option B is incorrect since it states 4 radians which are wrong. Option C is incorrect since it states 3 radians which is not the correct answer. Option D is incorrect since it states 36 radians which is not the correct answer.
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About Angular Displacement
Angular displacement measures the change in a body’s angular position and is expressed in radians or degrees, with anticlockwise and clockwise directions assigned signs. It connects to arc length, angular velocity and angular acceleration, and must be distinguished from ordinary linear displacement in rotational motion.
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