Question

Stephan & Jake want to ride their bikes from their house to a local Tesco which is 16.5 kilometers away. It takes Stephan 50 min to arrive at Tesco. Jake arrives 20 min after Stephan. How much faster (in meters/second) is Jake's average speed for the entire trip?

Options:
A. 2.08 m/s
B. 3.12 m/s
C. 4.16 m/s
D. 5.20 m/s

Answer 1

Jake's average speed for the entire trip is approximately 3.93 meters per second.

Step-by-step explanation:

To find Jake's average speed for the entire trip, we need to calculate the time it took for him to arrive at Tesco. Since Stephan took 50 minutes to arrive, and Jake arrived 20 minutes after Stephan, Jake took a total of 70 minutes (50+20). We can convert the distance and time units to meters and seconds respectively, to make the calculations easier.

Distance = 16.5 km = 16.5 × 1000 m = 16500 m

Time = 70 min = 70 × 60 s = 4200 s

Now, we can calculate Jake's average speed:

Average Speed = Distance / Time

Average Speed = 16500 m / 4200 s

Average Speed ≈ 3.93 m/s

Therefore, Jake's average speed for the entire trip is approximately 3.93 meters per second.