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Vinil7 [7]
3 years ago
7

Whats the velocity of a ball falling with 100joules of kinetic energy and a mass of 2 kilograms?

Physics
1 answer:
nlexa [21]3 years ago
5 0
Short answer: v = 10 m/s
Comment
This is just an application of KE = 1/2 m v^2
Givens
KE = 100 Joules
m = 2 kg
v = ???

Formula
KE = 1/2 m v^2

Substitution and Solve
100 = 1/2 * 2 * v^2
100 = v^2 Take the square root of both sides.
sqrt(100) = sqrt(v^2)
v = 10 m/s

Comment
There is no KE unless v > 0. 
You may have  PE when v = 0, but not KE.
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Answer:

ionized particles from the sun.

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Explanation:

Due to being made up of matter, the planet Earth has a series of positive and negative charges, in general these charges should be balanced and the net charge of the planet should be zero, but there are several phenomena that introduce unbalanced charges, for example:

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let's calculate

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Answer:

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