suppose you are driving on a straight
two lane road at a constant speed of 88 km/h truck
travelling at a constant speed of 104 km/h
approaches you.what is the truck's velocity relative to you.
11 years ago
11 months ago
To determine the truck's velocity relative to you, you need to calculate the relative velocity between the truck and your car. Here's how you can do that:
1. Convert the speeds of both vehicles to the same unit:
- Your speed: 88 km/h
- Truck's speed: 104 km/h
2. Determine the direction of the two vehicles:
- Since you are driving in opposite directions on a two-lane road, the relative direction is the sum of the speeds. Since the truck is approaching you, we consider its speed as negative.
3. Calculate the relative velocity:
- The relative velocity is the difference between the two speeds.
- In this case, it will be 88 km/h (your speed) + (-104 km/h) (truck's speed).
- The resulting relative velocity is -16 km/h.
Therefore, the truck's velocity relative to you is -16 km/h, indicating that it is moving towards you at a speed of 16 km/h.