Average velocity of an object after completeing a circle of 5 m radius in 5 seconds
Correct answer: C. zero
- A. 2π
- B. π
- C. zero
- D. 10π
Explanation
EXPLANATION IS Average velocity is defined ratio of total displacement and total time to cover that displacement. Now, when the object returns to its starting position, it's displacement will be zero. So, the average velocity is zero.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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