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Q)

Under the acting of a force P, the body can't moves up an incline from initial position $x_1=-150 mm$ to $x_2=80\;m$ where $x=0$ is the unstreched position of the spring along the incline. Find the work done by the spring

\[(a)\;4.03 \;J\quad (b)\;2.25 \;J \quad (c)\; 3.5 \;J \quad (d)\;4.98 \;J\]

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