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Problem $12\mathrm{.}010-$ A package traveling down a conveyor

A $4-$kg package is released from rest at point A and travels down the conveyor shown. Portions $AB$ and $CD$ are parallel to

each other. Neglect friction and any other energy loss. Given: $L=3\mathrm{.}750m.$

Problem $12\mathrm{.}010.$b $-$ Acceleration of the package on the conveyor

Determine the acceleration of the package at $A.$

The acceleration of the package at $A$ is

$\frac{m}{s^2}$