Question

1. Imagine that you take a 200.0 km trip. You travel the first half of the trip at 100.0 km/hr. Your speed for the second half is 50.0 km/hr. How much time does the entire trip take?

2. In the above problem, what is your average speed in km/hr and m/s
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Answer 1

Answer:

Explanation:

Speed = Distance/Time

Given

Distance = 200km

Total speed = 100+50 = 150km/hr

Time = Distance/Speed

Time = 200/150

Time = 1.33hr

b) Average speed in km/hr is 150km/hr

Convert to  m/s

150km/hr = 150 * 1000 m/1 * 3600s

150km/hr = 150,000/360

150km/hr = 416.67m/s