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

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) correct
If it may not have variable speed then its magnitude can be constant i.e.,|v=constant|
In case its direction is also constant then it can have constant velocity.
Statement-(2) 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)

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