The acceleration vector for a particle in uniform circular motion in
Correct answer: D. b and c
- A. Tangential to the orbit
- B. Directed toward the centre of the orbit
- C. Directed in the same direction as the force vector
- D. b and c
Explanation
The acceleration is directed towards the centre. This is a radial acceleration and is called the centripetal acceleration. Direction of force is the same as acceleration.
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About Vectors and Equilibrium
Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.
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