When the baseball hits your hand, its energy will be transferred to your hand and arm (and to some extent, the rest of your body and everything its in contact with). This energy will move your hand backwards suddenly. If the joints in your arm are already near their' limits then this transfer of energy may damage the joints. Extending your hand forward prevents this.Read more: Why_is_it_best_to_extend_your_hand_forward_when_catching_a_fast_moving_baseball
jerk
Jerk (noun) - drummel, tokstolle, tönt (When calling someone a jerk)Jerk (noun) - knyck, ryck, ryckning, stöt, puff, häftig rörelse (When something is suddenly pulled)Jerk (verb) - knycka, rycka
That's Steve Martin in the movie "The Jerk"
Your thumb is connected to your hand and your hand is connected to your arm.
I assume it would be the hand because the arm is less used and the hand has at least 50,000 senses and is a main sense it would be handin conclusion, the hand would be the main and best answers for this particular question concluding that the arm is from bottom hand to arm socket
"Sometimes you've got to take a dare just to keep going."
To throw or thrust with a sudden, smart movement; to kick or strike suddenly; to jerk., To strike or lash with a whip., To throw out the heels; to kick; to jerk., To move a quick, jerking motion., A sudden or quick thrust or motion; a jerk.
Love
clench your hand and jerk it up and down:)
Take your dominaint hand, clench it into a fist, then jerk the air to the beat of the music.
Because you have to overcome static friction when you push or pull for it to move. This resists the force, then when overcome it will jerk, then slide with sliding friction resisting.