If you push on a wall with a force of 200n with what force does the wall push back

Speed is defined as rate of change in position or we can say it is ratio of total distance moved in total interval of times

While in order to find the velocity we know that it is ratio of total displacement and total time

so here main difference is that speed is scalar quantity and we do not require any direction in speed while in velocity we require direction as well as magnitude

Here we need to select a case where speed is constant while velocity is not constant.

It is only possible when direction is continuously changing but magnitude remains the same

so here correct answer will be

C) driving around in a circle at exactly 100 km/hr

Final answer:

Constant speed but not constant velocity is representational of circular motion, where speed is steady but the direction of movement continuously changes - such as driving around a circle at 100 km/hr.

Explanation:

The example in which you are traveling at a constant speed but not at constant velocity is C) driving around in a circle at exactly 100 km/hr. Velocity incorporates both speed and direction. Despite maintaining a constant speed, the constant change in direction (which is characteristic of circular motion) means the velocity is not constant.

To illustrate further, imagine a car moving around a circular track at a steady speed of 100 km/hr. Despite the speed remaining constant, the car is continuously changing direction. Therefore, its velocity, a vector quantity taking into account both magnitude (speed) and direction, is constantly changing.

In contrast, if we consider other examples such as driving straight forward or backward at a specific speed, the direction remains constant, therefore maintaining a constant velocity unless the speed changes.

Learn more about Constant Speed and Velocity here:

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The transuranium synthesis process involves creating a transuranium element through the transmutation of a lighter element. The answer is letter B. Transuranium elements are the elements with atomic numbers greater than 92. All of these elements are unstable and decay radioactively into other elements.