3 years ago

A 50Kg girl jumps off a 5-meter-high diving board. What is her kinetic energy right before she hits the water?

Physics

1 answer:

Kryger [21]3 years ago

6 0

Answer:

2450 J

Explanation:

Given that,

A 50Kg girl jumps off a 5-meter-high diving board.

We need to find the kinetic energy of the girl before she hits the water. At this point the kinetic energy becomes equal to the potential energy such that,

$K=mgh\\\\K=50\times 9.8\times 5\\\\K=2450\ J$

So, her kinetic energy right before she hits the water is equal to 2450 J.

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3 years ago

the power of a physicians eyes is 57.1 D while examinging a patient. how far from her eyes (in m) is the feature being examined.

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Let the distance between the object and the eye is u

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1/ f = 1 / v - 1 / u

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