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3 years ago

15

Someone tell me where everyone is going right please !!

2 answers:

iVinArrow [24]3 years ago

8 0

Answer:

<em>1min = 0.25miles</em>

5.25miles / 0.25miles = 25 = 25minutes

Step-by-step explanation:

<u>Hope this is right I'm not the best at worded time/distance math questions.</u>

elena55 [62]3 years ago

8 0

9514 1404 393

Answer:

0 ≤ t < 52.5 minutes

Step-by-step explanation:

Riko will be behind Yuto until her distance traveled matches his. That is, she will be behind for ...

0.35t < 5.25 +0.25t

0.10t < 5.25

t < 52.5

Riko will be behind Yuto on the interval 0 ≤ t < 52.5 minutes.

_____

<em>Additional comment</em>

distance = speed × time

Here, time is measured from when Riko starts riding. In addition to the 5.25 miles that Yuto has already gone, his distance will be the product of his speed (0.25 mi/min) and the travel time (t min). Then Yuto's total distance is 5.25+0.25t miles. The speed×time product is also used to find Riko's distance traveled. In her case, it is 0.35t miles.

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The Acceleration of bike after 3 minutes of ride is 14 meter² per minutes

Step-by-step explanation:

Given as :

The displacement of bike is the function of time

i.e s(t) = t³ - 2 t² + 3 meters

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Now, According to question

∵ <u>Acceleration is define as the rate of change of velocity</u>

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<u>Velocity is define as rate of change of displacement</u>

i.e velocity = $\dfrac{\textrm displacement}{\textrm time}$

Or, v = $\dfrac{\textrm s}{\textrm t}$

Since here displacement is function of time

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