In uniform circular motion, tangential force is _
Correct answer: D. Zero
- A. Maximum
- B. Equal to radial force
- C. Lesser than radial force
- D. Zero
Explanation
The correct answer is Option D: Zero. In uniform circular motion, an object moves in a circle at constant speed, meaning there's no acceleration in the direction of the motion (tangential direction). Thus, the tangential force is zero. Options A, B, and C are incorrect as they imply the existence of tangential force, which would result in a change in speed, contradicting the nature of uniform circular motion.
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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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