A simple pendulum is made from a bob of mass 0.04 kg suspended on alight string of length 1.4m. Keeping the string taut, the pendulum is pulled to one side until it has gained a

To find the potential energy gained by the pendulum, we need to determine the maximum height it reaches. Here's how to do it:

1. Begin by identifying the initial position of the pendulum. In this case, the pendulum is pulled to one side until it has gained potential energy.

2. Next, release the pendulum and let it swing. As the pendulum swings, it will reach its highest position, also known as the amplitude.

3. Measure the amplitude of the pendulum's swing from its lowest point to its highest point. This will give you the maximum height the pendulum achieves.

4. Once you have measured the maximum height, you can calculate the potential energy gained by the pendulum using the following formula:

Potential Energy = mass * gravity * height

In this case, the mass of the bob is 0.04 kg, gravity is approximately 9.8 m/s^2, and the maximum height is the amplitude of the pendulum swing.

5. Plug in the values into the formula and calculate the potential energy gained by the pendulum.

By following these steps, you should be able to determine the potential energy gained by the pendulum.