Question

Below are four statement about acceleration which statement is NOT correct
i) changing speed always involve Acceleration
ii) change direction always involve Acceleration
iii) circular motion always involve Acceleration
iv) Acceleration involve changing speed​

Answer 1

Answer:

ii)changing direction always involve Acceleration

Answer 2

Answer:

Option D is the right choice.

Explanation:

Option A is correct as in order to change speed always acceleration is required.

Option B is correct as in order to change the direction the radial acceleration is required.

Option C is correct as in order to perform circular motion radial acceleration is required.

Option D is incorrect because it is not compulsory that always acceleration

is associated with change in speed. Acceleration is also observed in case of changing direction.