CREATE TABLE table_name_56 (velocity__km_h_ INT, date VARCHAR)

on august 16, 1963, what is the velocity?
SELECT SUM(velocity__km_h_) FROM table_name_56 WHERE date = "august 16, 1963"
SELECT SUM("velocity__km_h_") FROM "table_name_56" WHERE "august 16, 1963" = "date"