A Marathon runner runs 30 Km south and 20 Km North in 5 hours.

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Calculate:
The distance that the runner covered:

The displacement of the runner

The speed of the runner

The velocity of the runner

An aeroplane pilot plans a trip of 2000 Km from a mysterious city to Surabaya. She said that she wants to arrive at Surabaya at 15.00. If her plane average velocity is 500 km/h, what time should she start her trip?

A motorbike rider accelerates his ride from 10 m/s to 30 m/s in 5 seconds. Determine the acceleration of the motorbike!

A Nascar racer completed 2 laps on a circular track in 2 minutes. If the diameter of the track is 50 meters, calculate:
The speed of the car

The velocity of the car

A Marathon runner runs 30 Km south and 20 Km North in 5 hours.

Jawaban:

a. The distance that the runner covered:  

   30 km + 20km = 50km

b. The displacement of the runner

   30km – 20km = 10km

c. The speed of the runner

   v= 5/t -> 50km / 5h = 10km/hour

d. The velocity of the runner

   v = △x / △t = 10km / 5h =2km/hour

hope it helps 😀

あなたは英語でそのようなばかです $$$$$$