The displacement x of a particle moving in one dimension under the act – McqOptions

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1.	The displacement x of a particle moving in one dimension under the action of a constant force is related to the time t by the equation \[t=\sqrt{x}+3\], where x is in meters and t is in seconds. The work done by the force in the first 6 seconds is [IIT 1979]
A.	9 J
B.	6 J
C.	0 J
D.	3 J
Answer» D. 3 J

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