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in Physics by (150k points)

An object follows a curved path. The following quantities may remain constant during the motion 

(a) speed 

(b) velocity 

(c) acceleration 

(d) magnitude of acceleration.

1 Answer

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Best answer

(a) speed

(d) magnitude of acceleration.

Explanation: 

On a curved path, instantaneous direction of movement changes continuously. So, a vector can not remain constant on a curved path because it has both magnitude and direction. In the above options, velocity and acceleration are vectors, therefore they will change. Speed and magnitude of acceleration do not have directions, so they may remain constant on a curved path, Hence options (a) and (d) are correct.

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