Which action can knowing the "Three Rs lead a person to do?
1 answer:
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Answer:
The driver's average velocity is 82.35 km/h.
Explanation:
Given:
The motion of the driver can be divided into 3 parts:
i. Displacement of the driver in 1.5 hours = 135 km
ii. Rest for 45 minutes.
iii. Displacement in next 2 hours = 215 km
The direction of motion remains same (east).
Now, total displacement of the driver is, km.
Rest time is 45 minutes. Converting it to hours, we need to use the conversion factor hour.
So, 45 minutes in hours is equal to hours.
Now, total time taken for the complete journey is,
Average velocity is given as:
Therefore, the driver's average velocity is 82.35 km/h
Answer:
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