Physics

To calculate the cyclist's average speed for the entire trip, we first need to find the total distance traveled and the total time taken.

Calculate total distance:

For the first segment (25 km/h for 0.5 hours):

Distance₁ = Speed × Time = 25km/h × 0.5h = 12.5km

For the second segment (20 km/h for 0.75 hours):

Distance₂ = Speed × Time = 20km/h × 0.75h = 15km

Total Distance = Distance₁ + Distance₂ = 12.5km + 15km = 27.5km

Calculate total time:

Convert time to hours:

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