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Question

When forces straight F subscript 1 comma straight F subscript 2 comma straight F subscript 3 are acting on a particle of mass m such that  and  are mutually perpendicular, then the particle remains stationary. If the force  is now removed then the acceleration of the particle is-

  1. straight F subscript 1 divided by straight m
  2. straight F subscript 2 straight F subscript 3 divided by mF subscript 1
  3. open parentheses F subscript 2 minus F subscript 3 close parentheses divided by m
  4. straight F subscript 2 divided by straight m

The correct answer is: straight F subscript 1 divided by straight m

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