In order to walk forward on a road, a person must push the ground in which direction?

With reference to the property of inertia, which one of the following comparisons is correct?

The phenomenon of gun recoil is a direct consequence of:

A motor vehicle with a dead battery requires a continuous push to start rather than a sudden jerk. This is best explained by the fact that:

With reference to the motion of a bicycle, consider the following statements: 1. When pedalling stops, the bicycle slows down solely due to the absence of the pedalling force. 2. To keep the bicycle moving at a uniform velocity, the applied force must balance the frictional force. 3. An object moves with a uniform velocity when the pushing force is greater than the frictional force. Which of the statements given above is/are correct?

Consider the following everyday experiences: 1. Dust coming out of a carpet when beaten with a stick. 2. Leaves getting detached from a tree when shaken vigorously is unrelated to the property of inertia. 3. A coin falling into a tumbler when the card below it is flicked. Which of the above can be explained by the Law of Inertia?