The force that causes your car to move forward is primarily generated by the engine, which produces power that turns the wheels. This power is transmitted through the drivetrain, creating traction between the tires and the road surface. The friction between the tires and the road allows the car to accelerate and maintain motion. Additionally, Newton's third law of motion indicates that for every action, there is an equal and opposite reaction, which helps propel the car forward.
inertia
A wall and a people
The book is experiencing inertia; a state which resists change in motion. This is represented by Newton's first law of motion which states that an object at rest will remain at rest and an object in motion will remain in motion unless acted upon by an external force. Therefore the book in the car continues to move forward until it is acting on by an external force such as the applied force of something in the book's path of motion.
The forward force on a car is caused by the engine applying power to the wheels, which creates friction between the tires and the road surface. This friction allows the wheels to push against the road and propel the car forward.
Since the car does not move, the boy does no work on the car. Work is only done when a force causes an object to move in the direction of the force.
If you are behind a car, about to push it forward from a resting position, you will need to exert a force on the car to accelerate it from resting position. While you are pushing against the car, however, there will be a reaction force pushing back at you. In order to produce a large net force against the car without being pushed backward yourself, you need to increase the friction of your feet against the ground...so that the frictional force between your feet and the ground prevents you from sliding backward. The combinations of the frictional force and your force pushing forward against the car will cause the car to move forward. The frictional force of the car being moved from resting position also has to be overcome, of course.
There is no such thing as "force of inertia". The passengers are thrown forward, maintaining their initial motion. This is an application of Newton's First Law, which states that an object in motion stays in motion unless acted upon a force. The force of the car brake is acted upon the car and not on the passengers. This is why the passengers continue to move forward for a second when the car stops.
centrifugal force
No, I would not continue to move forward if the bumper car stops upon hitting another car. The design of the bumper car is such that it comes to a halt upon impact, preventing any forward motion. Additionally, the laws of physics dictate that once the car stops, inertia would not carry it forward unless an external force acted upon it.
1. force that moves a car forward is the friction force between the tires and the road (ignoring what is going on mechanically in the car) 2. if the car is travelling at constant velocity, net force is zero - forces pushing car forward are equal to forces pushing car back
Friction between the tires and the road helps transfer the force you apply to the car, allowing it to move forward. Without friction, the tires would just spin in place and the car wouldn't move.
When a driver applies the brakes quickly, inertia causes the book to continue moving forward momentarily before friction and the force of deceleration from the car's brakes eventually bring it to a stop. The sudden stoppage of the car transfers inertia to the book, causing it to move forward until external forces act upon it.