In the process of delivering mail, a postal worker walks 161 m, due ease from his truck. He then turns around and walks 294 m in the west direction and then walks another 100 m in the east direction. What is the worker's displacement relative to his truck?

The displacement is 33 m due west

Explanation:

From the question we are told that

The first displacement due east is

The displacement due west is

The second displacement due east is

Generally the displacement is mathematically represented as

=>  

=>       Note [-ive] represents west [+ive] represents east  

Which means that the displacement is 33 m  due  west

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

b. a lightning bug, plug of grass, and a worm