Discuss with a friend if the plot of speed versus time can be a closed curve, such as a circle.

The graph of the dependence of speed on time cannot be a closed curve, because this is contrary to the definition of a function graph.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.