In describing the forces acting on a water stream as it travels through space, which factor completes the list: velocity, ________, wind, and friction with air?

In describing the forces acting on a water stream as it travels through space, which factor completes the list: velocity, ________, wind, and friction with air?

• A. Pressure
• B. Gravity
• C. Temperature
• D. Buoyancy

Answer: (B)

When a water stream is in flight, its path is shaped by forces acting on it as it moves. The stream starts with forward velocity from the nozzle, but gravity provides the downward pull that causes it to sag as it travels. Wind can push the stream sideways, and friction with the surrounding air (drag) slows and distorts the stream's shape. Gravity completes the set because it is the vertical force that creates the downward arc, turning what would be a straight path into a curved trajectory. Pressure and temperature aren’t the primary factors governing the path in this context, and buoyancy from the surrounding air is negligible compared to gravity for a dense water jet.

When a water stream is in flight, its path is shaped by forces acting on it as it moves. The stream starts with forward velocity from the nozzle, but gravity provides the downward pull that causes it to sag as it travels. Wind can push the stream sideways, and friction with the surrounding air (drag) slows and distorts the stream's shape. Gravity completes the set because it is the vertical force that creates the downward arc, turning what would be a straight path into a curved trajectory. Pressure and temperature aren’t the primary factors governing the path in this context, and buoyancy from the surrounding air is negligible compared to gravity for a dense water jet.