Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1751142_2 (distance__m_ INTEGER, shuttle_time__seconds_ VARCHAR)

### Question ###
What is the distance (in meters) when the shuttle time is 6.86 seconds?

### Accurate SQL ###

SELECT MIN(distance__m_) FROM table_1751142_2 WHERE shuttle_time__seconds_ = "6.86"