He fell backward and seemed to take a very long time to hit the ground.
She fell backward, and he allowed himself to fall on top of her.
I found myself falling backward in time to be with them.
They would climb about 10 feet and then fall backward on top of each other.
She came out of the kitchen and fell backward into a chair.
The woman fell backward, a look of surprise on her face.
Even if she landed on her feet, she'd have to fall forward or backward.
He raised himself once, then fell backward and lay still.
The man fell backward, and suddenly there was a path over his body for another few feet ahead.
He threw up his arms and fell backward with the effort.