If a car which is moving in straigh line steadily increases its speed from 50 kph to 60 kph in 10 minutes what is its accekeration

French . could someone check my french text to see if it is okay. j’ai une petite famille. ma soeur est jolie et sympa, mais elle est ennuyeuse. mon petit frère est amusant et handsome. mon frère aîné est très grand, intéressant, et bon dessinateur. mon père est amusant, intelligent, et doué dans son travail. ma mère est jolie, comme ma soeur, sérieux, et bon a cuisine. i want to be saying: i have a small family. my sister is pretty and nice, but she’s boring. my little brother is fun and handsome. my older brother is very tall, interesting, and a good drawer. my dad is fun, smart, and good at his job. my mother is pretty, like my sister, serious, and a good cook.