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kondor19780726 [428]

3 years ago

13

A car travels 85 km in the first half hour of a trip. The car continues to travel for 2 more hours and travels 200 km. What was

the average speed of the car for the trip?

1 answer:

viva [34]3 years ago

3 0

Answer:

50

Explanation:

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Answer:

time=4s

Explanation:

we know that in a RL circuit with a resistance R, an inductance L and a battery of emf E, the current (i) will vary in following fashion

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Applying logarithm on both sides,

⇒ $log(\frac{1}{2})=\frac{-2}{\frac{L}{R}}$

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⇒ $\frac{L}{R}=\frac{2}{log2}$

Now substitute $i(t)=\frac{3}{4}imax=\frac{3E}{4R}$

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Applying logarithm on both sides,

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also $log4=log2^{2}=2log2$

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