Assertion :Projectile motion is called a two dimensional motion, although it takes place in space. Reason: In space it takes place in a plane.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion is incorrect but Reason is correct.

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Both are correct and reason explains assertion. Though it takes place in space, since the acceleration vector is only in one direction and velocities only in $2$ directions, one being that of the acceleration, thus motion will be confined to $2 - D$ plane only.

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