A postman takes his daily delivery route starting at 33.0 m to 50° to northeast. Then follow his trajectory at 28.0m to the southeast at 35°. It finally moves at 63.0m southwest at 70°. Find the total displacement of the postman.

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.