Steffi Graf's Forehand

[Mahboob Khan]

Several factors contribute toward racket head speed:

-- Using one's legs: pushing against the ground which she did.
-- Upper body turn (coiling and then uncoiling) even King Cobra does take a backswing before striking.
-- Arm speed.
-- Racket head speed.

[toly]

Originally Posted by Mahboob Khan

Several factors contribute toward racket head speed:

-- Using one's legs: pushing against the ground which she did.
-- Upper body turn (coiling and then uncoiling) even King Cobra does take a backswing before striking.
-- Arm speed.
-- Racket head speed.

You described rotational motions. I’m asking only about straight linear motion: - hitting through the ball.

[Mahboob Khan]

"How she was able to hit through the ball and generate lots of racket head speed? Hitting through the ball is slow straight linear motion. Thus, it cannot produce high racquet speed!?"

When the contact is late, the racket has more path, more distance, to hit through on a linear path, and then follow-through.

How she was able to generate lots of racket head speed? This was your question, and you got my answer for it.