Question

please it's urgent friends

Answer 1

Here we have to find the volume

Volume = Length × Breadth × Height/Depth

Here, depth = 3m
Breadth = 40m

Since the river is moving with a speed of 2km/hr we will change it in m/minute first


2km/hr

= 2000m/60 minute

= 100/3


So the river covers 100/3 m per minute.

So the length would be 100/3 m


Now volume = 100/3 × 3 × 40

=> Volume = 4000 m³


Hence your answer is 4000 m³


Hope it helps dear friend

Answer 2

the area of water front will be... 3x40= 120 m²

speed is 2km/hr or

10/18 m/s

or 100/3 m/min

so volume per minute is the area x speed

or 120 x 100 / 3

4000m³




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