3 years ago

Net force acting on a 100kg man standing in an elevator accelerating downward with a=9.8 m/s^2 comes out to be:

Physics

1 answer:

gayaneshka [121]3 years ago

6 0

Explanation:

F=ma=(100kg)(4m/s/s)=400N

N is Newton, the SI unit of force, which is a kg•m/s/s. F is net force and, of course, m is mass and a is acceleration.

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a motor pulls up a block suspended on a string, so that the tension in the string is equal to the qeight force on the block. the

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Answer:

Explanation:

Let T be the tension in the string and mg is the weight of the block.

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T - mg = ma

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You can use a system of equations to graph and solve the polynomial equation 3 x cubed + x = 2 x squared + 1. Which statement is

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The equation has one zero, and the system has three solutions ( 1 real and 2 complex solutions).

<h3>Solution of the polynomial equation</h3>

The solution of the polynomial equation is determined as follows;

3x³ + x = 2x² + 1

3x³ - 2x² + x - 1 = 0

$3(x - \frac{2}{9} )^3+ \frac{5}{9} (x - \frac{2}{9} )- \frac{205}{243} = 0\\\\x = 0.78 \ (one \ real \ solution)\\\\x = -0.058-0.65i\\\\x = -0.058+0.65i \ \ (2 \ complex \ solutions)$

Thus, we can conclude that the equation has one zero (real solution), and the system has three solutions ( 1 real and 2 complex solutions).

Learn more about polynomial equations here: brainly.com/question/2833285

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Elena-2011 [213]

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Which was an idea use to distribute the theory of plate tectonics

xxMikexx [17]

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continental drift

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Explanation:

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