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Question
In a two dimensional motion, instantaneous speed v0 is a positive constant. Then which of the following are necessarily true?
Options
The acceleration of the particle is zero.
The acceleration of the particle is bounded.
The acceleration of the particle is necessarily in the plane of motion.
The particle must be undergoing a uniform circular motion.
Solution
The acceleration of the particle is necessarily in the plane of motion.
Explanation:
The acceleration of the particle will necessarily be zero and in the plane of motion because the given speed is constant and positive, i.e. in the direction of force.
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