Physics: A fast ferry takes 4 hours to cross a lake an average speed of 108km/h. On a particular day, it travaled at an average speed of 94km/h for 4 hours. What was the remaining distance?

A fast ferry takes 4 hours to cross a lake an average

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22.01.2022

Remaining distance will be 56 km

Explanation:

As we know that the distance traveled is given as the product of speed and time

So we will have

$d = v \times t$

so total distance to cross is given as

$d_{total} = 4\times 108$

$d_{total} = 432 km$

Now if it moves with speed of 94 km/h for 4 hours then distance covered by it

$d = 94 \times 4$

d = 376 km

Remaining distance is given as

$d_{remain} = d_{total} - d$

$d_{remain} = 432 - 376$

$d_{remain} = 56 km$

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