static friction

15 LETTERS · STARTS WITH S

static friction is a valid 15-letter word worth 21 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1A1T1I1C3F4R1I1C3T1I1O1N1

1 + 1 + 1 + 1 + 1 + 3 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does static friction mean?