J3. Cross-Country Skiing Your friend is training for a cross-country skiing race

Question

J3. Cross-Country Skiing Your friend is training for a cross-country skiing race, and you and some other friends have agreed to provide him with food and water along his training route. It is a bitterly cold day, so none of you wants to wait outside longer than you have to. Taro, whose house is the stop before yours, calls you at 8:25 A.M. to tell you that the skier just passed his house and is planning to move at an average speed of 8.0 km/h. If it is 5.2 km from Taro's house to yours, when should you expect the skier to pass your house? (Chapter 2)

Explanation / Answer

x = v t

5.2 = 8 x t

t = 5.2 / 8 = 0.65 hr = 39 min

adding that to 8:25 am

8 h 25 m + 39 m = 8h + 64 m = 8h + 1h + 4m

= 9h 4min

= 9:04 am

upvote if it helps

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