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Standard XII

Physics

Inertia

Three blocks ...

Question

Three blocks of masses $m_{1} = 1 k g, m_{2} = 2 k g a n d m_{3} = 3 k g$ are placed in contact on a horizontal frictionless surface. A force $F = 12 N$ is applied to mass $m_{1}$ . The acceleration of the system is

12 m s^{- 2}

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6 m s^{- 2}

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4 m s^{- 2}

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2 m s^{- 2}

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Solution

The correct option is D $2 m s^{- 2}$
Acceleration $= \frac{12}{3 + 2 + 1} = 2 m / s$

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Three blocks of masses $m_{1} = 1 k g, m_{2} = 2 k g a n d m_{3} = 3 k g$ are placed in contact on a horizontal frictionless surface. A force $F = 12 N$ is applied to mass $m_{1}$ . The acceleration of the system is

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