Question

A hiker south along a straight path for 1.5 with an average velocity of 0.75 km/h, then travels south for 2.5 with an average velocity of 0.90 km/h. What is the hikers displacement for the total trip?

Answer 1

Answer on Question #66692-Physics-Other

A hiker south along a straight path for 1.5 h with an average velocity of 0.75 km/h, then travels south for 2.5 h with an average velocity of 0.90 km/h. What is the hiker's displacement for the total trip?

Solution

The hiker's displacement for the total trip is

$$D = d _ {1} + d _ {2} = v _ {1} t _ {1} + v _ {2} t _ {2} = (0. 7 5) (1. 5) + (0. 9) (2. 5) = 3. 4 k m.$$

Answer: 3.4 km.

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