Question

(c) 3.0 m s^-2 = .... km h^-2?
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Answer 1

Answer:

the answer is 38880 km

1 Kilometer per hour squared is equal to 1/12960 meters per second squared (SI unit). 1 km/h2 = 0.000 077 160 4938 m/s2

Explanation:

Answer 2

Answer:

The acceleration in required units is

$3ms {}^{ - 2} = 38880 \: kmhr {}^{ - 2}$

Explanation:

Given acceleration in SI units is

$a = 3ms {}^{ - 2}$

For solving this problem we use a simple algebraic method.Let us assume that

$3ms {}^{ - 2} = x \: kmhr {}^{ - 2}$

Therefore,

$x = 3 \times \frac{ms {}^{ - 2} }{kmhr {}^{ - 2} }$

Writing the proper units in above term we get

$x = 3 \times \frac{ms {}^{ - 2} }{(1000m)(3600s) {}^{ - 2} } \\ = 3 \times \frac{1}{1000} \times \frac{1}{3600 {}^{ - 2} } \\ = \frac{3}{1000} \times 3600 {}^{2} \\ = 38880$

The value of x obtained is 38880.Therefore the acceleration in our required units is

$3ms {}^{ - 2} = 38880 \: kmhr {}^{ - 2}$

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