Question

where did roger fall on losing his balance?

Answer 1

, Roger loses his balance because the purse strap breaks as he tries to snatch it off Mrs. Jones' shoulder and he ends up falling backwards

Answer 2

Roger was quiet sure that he can pull the purse slinging on Mrs. Jones shoulder and tries to pull harder, but the purse was heavier than his expectation.

He loses his balance due to which he falls on the pavement. Mrs. Jones kicks him and picks him up by his shirt.