5 kg mass. It is released at an angle of 30 to the vertical. Draw a sketch showing the angles. Use the sketch to determine the launch height.

7. A pendulum bob has a 2 m long string attached to a 0.5 kg mass. It is released at an angle of 30° to the vertical. Draw a sketch showing the angles. Use the sketch to determine the launch height.

b) How fast is the pendulum moving at the bottom of the swing?

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