A Car Rounds a 75-M Radius Curve at a Constant

question 43

Multiple Choice

A car rounds a 75-m radius curve at a constant speed of 18 m/s.A ball is suspended by a string from the ceiling the car and moves with the car.The angle between the string and the vertical is:

• A)0°
• B)1.4°
• C)24°
• D)90°
• E)cannot be found without knowing the mass of the ball

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Definitions:

Facebook Drones

Unmanned aerial vehicles developed by Facebook (now Meta) aimed at providing internet access to remote areas by flying at high altitudes.

Wingspan

The measure of distance from one wingtip of an animal or aircraft to the other; in business, it can metaphorically refer to the reach or spread of a company's influence.

Altitudes

The height of an object or point in relation to sea level or ground level.

GEO

Short for Geostationary Earth Orbit, a circular orbit 35,786 kilometers above the Earth's equator where a satellite's orbital period matches the Earth's rotation, appearing stationary to an observer on Earth.