1. Initial Motion:
Initially, when you start walking, your motion relative to the ground is simply the sum of your walking velocity and the velocity of the bus. Since the bus is moving forward, your initial velocity relative to the ground is the vector sum of your walking velocity in the backward direction and the bus's velocity in the forward direction.
2. Walking Motion:
As you continue to walk towards the back of the bus, your velocity relative to the ground changes due to your walking. Your velocity in the backward direction (relative to the bus) adds to the bus's forward velocity, resulting in a net velocity that is the vector sum of these two components.
3. Relative Motion:
Your motion relative to the ground can be observed from an external perspective. To an outside observer standing on the ground, it appears as if you are walking backwards while the bus is moving forwards. Your motion is a combination of your walking speed and the bus's speed.
4. Frame of Reference:
It's important to consider the frame of reference when describing motion. In this case, the frame of reference is the ground. Your motion is described relative to the ground, which is considered stationary.
5. Position Change:
As you walk towards the back of the bus, your position relative to the ground changes continuously. Your position moves backward due to your walking, while the bus's forward motion also affects your overall position.
6. Effect of Bus's Motion:
The motion of the bus plays a crucial role in your relative motion. If the bus were stationary, your motion would simply be your walking velocity. However, since the bus is moving forward, its velocity affects the direction and magnitude of your overall velocity relative to the ground.
