Great Auto Zelda is a very strange lady. She is known to her niece, Latisha, only through correspondence. However strange and remote, she does love her family and Latisha loves her Great Aunt Zelda.

Latisha has decided to knit a beautiful Christmas scarf. The scarf needs to be 2 meters long. 

Assuming that the first stripe is 5 centimeters and each additional stripe is 1cm centimeters wider than the previous. How many stripes does Latisha need to knit?