A car travels to home from school. For the first 100km it travels 100km/h and for the rest of trip travels 50km/hr and completes the trip in 1 hr and 42 min. Calculate the avg speed for the ENTIRE trip.
The Attempt at a Solution
It's asking for the entire trip so we assume it comes back home.
In this case is avg speed = 0 because the displacement was 0.