While traveling, John let destination A at 9 am. Driving until 7 pm, he travelled a total of 500 miles. The next day, John left
2 answers:
Answer:
The average speed for both days, while driving is 42.77 miles/hr.
Explanation:
Given that,
Distance first day = 500 miles
Distance second day = 270 miles
According to question,
The distance covered by the john in 10 hours = 500 miles
Next day ,
The distance covered by the john in 8 hours = 270 miles
We need to calculate the average speed for both days
Using formula of the average speed
Where, D = total distance
T = total time
Put the value into the formula
Hence, The average speed for both days, while driving is 42.77 miles/hr.
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, we find the total angular displacement:
2) If we put larger tires, with radius
, the angular displacement will be smaller. We can see this by using the same formula. In fact, this time we have:
where S is the arc length and r is the radius. The problem says that the truck drove for 2600 m, so this corresponds to the total arc length covered by the tire:
2) If we put larger tires, with radius