Question

A catapult’s lever holds a cannonball. The lever is attached to a tightly held rope. When the rope is released, the lever springs forward and launches the cannonball. When the rope is held tightly, which form of energy does it possess?

Answer 1

A rope held tightly posses elastic potential energy. when the rope is held tightly, it gets stretched by some amount and in a way the rope gets deformed. The rope tends to get its original shape back when the rope is released. some work is done to deform or stretch the rope against the restoring force between the particles and this work done reflects as elastic potential energy.

Elastic potential energy.

Answer 2

When the rope is held tightly, it possesses potential energy.

Mechanical energy refer to the energy possessed by a body by virtue of its position or its motion. Hence the types of mechanical energy are;

• Kinetic energy
• Potential energy

When the rope is held tightly, it possesses potential energy. This is converted to kinetic energy when it is released.

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