Block A has a mass of 5kg and is placed ...

Block A has a mass of `5kg` and is placed on top of a smooth triangular block, B having a mass of `30kg`. If the system is released from rest, determine the distance, B moves when A reaches the bottom. Neglect the size of block A.

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The correct Answer is:

A, D

`m_Ax_A=m_Bx_B`
`:. (5)(0.5-x)=30x`
`:. x=0.0714m`
`=71.4mm`

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