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Q.

Given below are two statements. One is labelled as Assertion (A) and the other is labelled as reason (R).

Assertion (A): No net force is required by the body to remain in a state of uniform motion.

Reason (R): In uniform linear motion, acceleration has a non-zero value.

In the light of the given statements, choose the correct answer from the options given.

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a

Both (A) and (R) are true but (R) is not the correct explanation of (A)

b

Both (A) and (R) are true and (R) is the correct explanation of (A)

c

Both (A) and (R) are false

d

(A) is true but (R) is false

answer is C.

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Detailed Solution

Newton's First Law of motion states that a body at rest will remain at rest and body at motion will remain in uniform motion unless an unbalanced force acts on it to change its state of rest or of uniform motion. Hence No force is required by the body to remain in a state of uniform motion is true.
In uniform linear motion direction of velocity remains constant and even magnitude remains constant when both are constant acceleration is zero. When acceleration is zero. Hence acceleration has a finite value is false.

(A) is true but (R) is false

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