Question

A bus that is traveling north at 48 km/h slows to a stop to pick up passengers. It then begins moving again. At the next corner, it turns to the east.

a. Identify the speed of the bus.

b. Identify one example of the velocity of the bus.

c. Identify each group of words or phrases that describe acceleration of the bus.

Answer 1

Speed refers to how fast an object is moving, velocity is speed with direction, and acceleration is the rate of change of velocity. A bus decreasing in speed until it stops is an example of deceleration. The bus starting, stopping, and turning are all examples of acceleration.

Step-by-step explanation:

The question relates to the concepts of speed, velocity, and acceleration in the context of motion in physics. These concepts can be addressed in a specific example:

1. The speed of a bus slowing down and then coming to a stop is initially 48 km/h and it reduces to 0 km/h as it stops.
2. An example of the velocity of the bus could be 20 m/s north before it decelerates to a stop. It's a vector quantity, so it includes both magnitude and direction.
3. The acceleration of the bus involves any change in its velocity, which includes the bus speeding up from a stop, moving at a constant speed, slowing down at a stop, and turning to a new direction.