solve this both question solve it in text don't use any ai or you will get reported :

1. Imagine two cars are traveling on a straight road. Car A is moving at a speed of60 km/h, while Car B is moving at a speed of 80 km/h in the opposite direction. What is the relative velocity between the two cars?
2. Imagine you are riding a bike in a park with a velocity of 20 km/h to the east. As you pedal, you encounters a strong crosswind blowing from the northwest at a velocity of 10 km/h.