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mamaluj [8]
2 years ago
15

A brick is lying on a table in a state of static equilibrium. If the mass of the brick is 7.52 kilograms, what is the normal for

ce exerted by the table on the brick?
Physics
1 answer:
WARRIOR [948]2 years ago
7 0

Answer:

-mg = -7.52*9.8 = - 73.696N

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Answer:

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Explanation:

For this exercise we can find the speed at the bottom of the ramp using energy conservation

Starting point. Higher

            Em₀ = K + U = ½ m v₀² + m g h

Final point. Lower

            Em_{f} = K = ½ m v²

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Newton's second law

              N- W = 0

     

The equation for the friction is

               fr = μ N

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We replace

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Let's calculate

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