To find the force exerted by a jet of water on a stationary flat plate, you can use the formula:
\[ F = \frac{1}{2} \times \text{density of water} \times \text{velocity}^2 \times \text{area of the jet} \]
1. First, calculate the area of the jet using the diameter given. The diameter is 75mm, so the radius would be half of the diameter, which is \( \frac{75}{2} = 37.5 \) mm or 0.0375 meters. The area of the jet is then \( \pi \times (0.0375)^2 \).
2. Determine the velocity of the water jet. If the velocity is not given, you can measure it using appropriate instruments.
3. Look up the density of water, which is approximately 1000 kg/m³.
4. Substitute the values into the formula and calculate the force exerted by the water jet on the flat plate.
By following these steps and using the formula provided, you can find the force exerted by a jet of water on a stationary flat plate accurately.
