Object’s $m a s s$ = $2 k g F_{1}$ = $10 N e w t o n$ $F_{2}$ = $1 N e w t o n$ . The magnitude of the acceleration is:

4.5 m s^{2}

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3 m s^{2}

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4 m s^{2}

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6 m s^{2}

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Solution

The correct option is A $4.5 m s^{2}$
Net force $F = F_{1} - F_{2} = 10 - 1 = 9 N$
Acceleration $a = \frac{F}{m} = \frac{9}{2} = 4.5 m / s^{2}$

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(AIEEE-2002)