4 ms·
> The force felt by the driver is the sum of these 2 forces Correct me if I'm wrong, but I think you've added non existent extra forces. In the car/car situat
by antod 2y ago
> The force felt by the driver is the sum of these 2 forces
Correct me if I'm wrong, but I think you've added non existent extra forces.
In the car/car situation, there are still only two forces - each the reaction of the other depending on which cars point of view you're taking. There aren't two separate forces to sum.
Each car experiences a decelerating force - the reaction of which is the decelerating force for the other car and the reaction of that is the original deceleration force of the original car.
- dools 2y agoIf a car crashes into a wall, the wall feels the force of the car and the car feels the force of the wall. If the wall doesn’t move then the force acting on the car is the same as the force of the car on the wall. If the wall is also moving towards the car then the force felt by the car is the sum of the reaction force it would have felt if the wall were stationary plus the force due to the wall trying to accelerate the car in the opposite direction. In the author’s example is says that 2 cars crashing into each other is the equivalent of two cars crashing into a wall, and it’s false.