1.

When forces F_(1),F_(2),F_(3) are acting on a particle of mass m such that F_(1) and F_(2) are mutually perpendicular, then the particle remains stationary, If the force F, is now removed then acceleration of the particle is

Answer»

`F_(1)//m`
`F_(1),F_(3)//mF_(1)`
`(F_(2)-F_(3))//m`
`F_(2)//m`

Answer :A


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