18. Problem to find the acceleration by using second law of motion

A force of 10 \(N\) gives a mass

m_{1}

, an acceleration of 15

m s^{- 2}

and a mass

m_{2}

, an acceleration of 28

m s^{- 2}

What acceleration would it give if both the masses were tied together?

Acceleration \(=\)

m s^{- 2}

[Note: Enter your answers with 2 decimal digits]

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