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Three forces F 1 = 10 N, F 2 = 8 N, F 3 = 6 N are acting on a particle of mass 5 kg. The forces F 2 and F 3 are applied perpendicularly so that particle remains at rest. If the force F 1 is removed, then the acceleration of the particle is

1. 7 ms –2
2. 0.5 ms –2
3. 4.8 ms –2
4. 2 ms –2

Correct answer: 2 ms –2

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