A small block of mass \( 1 / 4 \mathrm{~kg} \) has an initial kinetic energy of \( 500 \mathrm{~...
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A small block of mass \( 1 / 4 \mathrm{~kg} \) has an initial kinetic energy of \( 500 \mathrm{~J} \) while moving over the frictionless surface shown in Fig. 8-79. Find the kinetic energy of block at \( Q \).
Figure 8-79
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