A mass of 0.50 kg hangs from a thread 1.50 m long. The mass is drawn aside a horizontal distance pf 0.50 m, keeping the string taut. A pencil is clamped vertical so that when the mass is released it will swing and break the pencil. After breaking the pencil, the mass continues to swing but only moves a horizontal distance of 0.32 m. With the aid of a diagram, determine the energy required to break the pencil.

A mass of 0.50 kg hangs from a thread 1.50 m long. The mass is drawn aside a horizontal distance pf 0.50 m, keeping the string taut. A pencil is clamped vertical so that when the mass is released it will swing and break the pencil. After breaking the pencil, the mass continues to swing but only moves a horizontal distance of 0.32 m. With the aid of a diagram, determine the energy required to break the pencil.

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