Final answer:
The car's velocity is 100 km/hr towards Los Angeles, which can be converted to approximately 27.78 m/s in the same direction if needed.
Step-by-step explanation:
The velocity of a car travelling at 100 km/hr from Las Vegas to Los Angeles can be described as a scalar quantity, which is the speed, and a vector quantity, which defines its direction. In this case, since the direction from Las Vegas to Los Angeles is specified, the car's velocity would be 100 km/hr in the direction towards Los Angeles. However, if you needed the velocity in standard SI units, you would convert the km/hr to m/s by multiplying by 1000 m/km and then dividing by 3600 s/hr, giving you approximately 27.78 m/s towards Los Angeles.
The velocity of a car traveling at 100 km/hr from Las Vegas to Los Angeles can be calculated using the formula:
Velocity = Distance / Time
Since the distance between Las Vegas and Los Angeles is approximately 429 km and the time taken to travel this distance is not provided in the question, it is not possible to determine the exact velocity in this case.