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Lady bird [3.3K]
3 years ago
15

What is santa's average speed when visiting houses if he visits 800 million houses over 48 hours?

Physics
1 answer:
goldenfox [79]3 years ago
8 0

Well, "speed" normally = (total distance covered) / (time to cover the distance).

In this case, we don't know the total distance that Santa has traveled, so the question can be answered only if we're willing to consider some other meaning of "speed".

Maybe we could say that in this case, "speed" means the average rate at which he visits houses. Then ...

Speed of visits = (total houses visited) / (time to visit them).

Speed of visits = (800 million houses) / (48 hours)

Speed of visits = 16.67 million houses per hour.

That's 277.8 thousand houses per minute

That's <em>4,630 houses per second</em>

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You plan a trip on which you want to average 91 km/h. You cover the first half of the distance at an average speed of only 49 km
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Answer:

637 km/h, not reasonable

Explanation:

Total average speed = 91 km/h

Average speed of first half, v1 = 49 km/h

Let the average speed for the next half is v2.

Let the total distance is 2s.

Time taken for first half of the journey, t1 = s / v1 = s / 49

Time take for the next half of the journey, t2 = s / v2

The average speed is defined as the total distance traveled to the total time taken

91=\frac{2s}{\frac{s}{49}+\frac{s}{v_{2}}}

\frac{s}{49}+\frac{s}{v_{2}}=\frac{2s}{91}

\frac{1}{v_{2}}=\frac{2}{91}-\frac{1}{49}

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v2 = 637 km/h

This is very high speed which is not reasonable.

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3 years ago
A circuit already has two loads connected in parallel. Another parallel branch – with its own load – is added to the circuit. Wh
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Sodium chloride, NaCl, is formed when a sodium atom transfers its electron to a chlorine atom. The difference in charge between
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A 1000-kg car traveling east at 20 m/s collides with a 1500-kg car traveling west at 10 m/s. The cars stick together after the c
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Answer:

Common velocity will be 2 m/sec

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According to law of conservation of momentum

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So common velocity will be 2 m/sec

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3 years ago
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