What is the -LRB- vector -RRB- displacement between positions -LRB- 0.4 i + 0.1 j -RRB- m and -LRB- − 0.8 i + 0.6 j -RRB- m , and the distance between the two positions ?
What is the -LRB- vector -RRB- displacement between positions -LRB- 0.4 i + 0.1 j -RRB- m and -LRB- − 0.8 i + 0.6 -RRB- m , and the distance between the two positions ?