Question

Statement-1: A particle in motion may not have variable speed but constant velocity.
Statement-2: A particle in motion may not have non-zero acceleration but constant velocity.

• A. Both statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1.
• B. Both statement 1 and statement 2 are correct and statement 2 is not the correct explanation of statement 1
• C. Statement 1 is correct and statement 2 is incorrect.
• D. Statement 1 is incorrect and statement 2 is correct.

Answer 1

The correct option is B Both statement 1 and statement 2 are correct and statement 2 is not the correct explanation of statement 1

Statement-(1) $\to$ correct
If it may not have variable speed then its magnitude can be constant i.e.,$|\overrightarrow{v}=constant|$
In case its direction is also constant then it can have constant velocity.
Statement-(2) $\to$ correct
If it may not have non-zero acceleration then its acceleration can be zero. We know that acceleration= change in velocity. Therefore, change in velocity will be 0 (i.e. constant)
But Statement-(2) is not the correct explanation for Statement-(2)