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  • In a two dimensional motion, instantaneous speed v_{0} is a positive constant. Then which of the following are necessarily true? a) the acceleration of the particle is zero b) the acceleration of the particle is bounded

In a two dimensional motion, instantaneous speed v_{0} is a positive constant. Then which of the following are necessarily true?

a) the acceleration of the particle is zero

b) the acceleration of the particle is bounded

c) the acceleration of the particle is necessarily in the plane of motion

d) the particle must be undergoing a uniform circular motion

Answers (1)

The answer is the option (c) the acceleration of the particle is necessarily in the plane of motion

Explanation: In a two-dimensional motion, instantaneous speed is positive, and constant is given. Since velocity is constant, acceleration which is the rate of change in velocity is also constant. Hence, the acceleration will be in the plane of motion.

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