Overcoming the waterfall, the height of which is 2.45 meters, the fish jumps out of the water.

Overcoming the waterfall, the height of which is 2.45 meters, the fish jumps out of the water. find the module of the minimum speed with which the fish needs to jump out in order to overcome the given waterfall.

Data: h (the height of the waterfall that the fish must overcome) = 2.45 m.

Constants: according to the condition g (gravitational acceleration) = 10 m / s2.

To determine the required modulus of the minimum fish speed to overcome the waterfall, we apply the law of conservation of energy: m * V ^ 2/2 = m * g * h, whence V = √ (2 * g * h).

Calculation: V = √ (2 * 10 * 2.45) = √49 = 7 m / s.

Answer: The minimum speed of the fish should be 7 m / s.

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