If a lady who has been robbed chases after?

The purse in the shopping cart is still in physical proximity so the taking is a robbery. Since she got onto the hood of the car, the robber had not reached a place of safety so all continuing acts are a part of the initial crime. Erratic movement of the car is an assault - an attempt to inflict injury - and since the car is a weapon the whole thing is assault with a deadly weapon. When she falls to the ground the assault continues and the broken foot bone is a great bodily injury. The crimes are robbery with great bodily injury and assault with a deadly weapon inflicting great bodily injury. (There may also be a kidnapping since the victim was transported against her will.)