In case of a catapult ............... energy gets converted into kinetic energy

Options

A. muscular
B. stretchable
C. elastic potential
D. elastic

Explanation

To solve the question regarding what type of energy gets converted into kinetic energy in the case of a catapult, we can follow these steps:

### Step 1: Understand the function of a catapult
A catapult is a device that uses stored energy to launch an object, typically a projectile. The mechanism involves stretching a material, which stores energy.

**Hint:** Consider what happens when you stretch a material in a catapult.

### Step 2: Identify the type of energy stored
When the elastic strings or wires of the catapult are stretched, work is done on them. This work is stored as potential energy. Specifically, in the case of elastic materials, this stored energy is known as elastic potential energy.

**Hint:** Think about the energy associated with the deformation of elastic materials.

### Step 3: Release of energy
When the catapult is triggered (for example, by releasing the stretched wire), the stored elastic potential energy is converted into kinetic energy. This kinetic energy is what propels the projectile (like a ball) forward.

**Hint:** What happens to the stored energy when the elastic material returns to its original shape?

### Step 4: Conclusion
The type of energy that gets converted into kinetic energy in a catapult is elastic potential energy. Therefore, the correct answer to the question is:

**Answer:** Elastic potential energy.

### Summary of the Steps:
1. Understand the function of a catapult.
2. Identify the type of energy stored (elastic potential energy).
3. Recognize the conversion of energy upon release (to kinetic energy).
4. Conclude with the correct answer.