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klio [65]
3 years ago
6

- Over the weekend you go for an urban hike, traveling 3 miles north then 4 miles west before stopping to take a break. If this

hike takes 1 hour, what is your average velocity during that time? - You leave your house to go for a drive to clear your head, driving 10 miles over the course of 30 minutes before arriving back home. What is your average velocity?
Physics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0

Answer:

A.) 5 mph

B.) 20 mph

Explanation:

Given that you are traveling 3 miles north then 4 miles west before stopping to take a break. If this hike takes 1 hour,

Let's first calculate the displacement be using pythagorean theorem

D = sqrt ( 3^2 + 4^2 )

D = sqrt ( 9 + 16 )

D = sqrt ( 25 )

D = 5

Average velocity = displacement/time

Average velocity = 5/1

Average velocity = 5 mph

Therefore, your average velocity during that time is 5 mph

- You leave your house to go for a drive to clear your head, driving 10 miles over the course of 30 minutes before arriving back home. 

Average velocity = 10/ 0.5

Average velocity = 20 mph

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Answer:

\omega=4.7916\ rad.s^{-1}

Explanation:

Given:

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<u>Using the law of conservation of angular momentum:</u>

I'.\omega'=I.\omega

2.5\times 2.3=1.2\times \omega

\omega=4.7916\ rad.s^{-1}

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