Question

A particle is going in a spiral path as shown in figure (7 -Q3) with constant speed.

(a) The velocity of the particle is constant.

(b) The acceleration of the particle is constant.

(c) The magnitude of acceleration is constant.

(d) The magnitude of acceleration is decreasing continuously.

Answer 1

(c) The magnitude of acceleration is constant.

Explanation: 

Option (a) and (b) are not correct . Since the speed is constant the particle will have only radial acceleration with constant magnitude. Option (c) is correct. Option (d) is incorrect because option (c) is correct and both options are contradictory.