Two weights are hanging as shown in the figure .

Physics

1 answer:

Anna [14]4 years ago

6 0

Draw the free body diagram for the mass W2.

In it the only forces that appear are W2 (downward) and the Tension of the cable A (upward), TA

Net force = 0 => W2 = TA

Then TA = 200 N

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You push on a desk with a force of 150 N to the right. Your friend pushes on the same desk with a force of 50 N to the left . Wh

exis [7]

Answer:

The net force is 100 N to the right.

Explanation:

To solve this problem, we simply add together the forces. Since we know that there is a greater force to the right, we will designate this as the positive direction and the left as the negative direction.

To find the net force, let's add together the two forces we are given using our new positive/negative designations:

+150 N right - 50 N left

Now, we just perform simple subtraction to get:

100 N right

Therefore, the answer is that the net force is 100 N to the right.

Hope this helps!

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3 years ago

Which of the following statements is true about the variation of pressure in function of the depth? O Pressure decreases exponen

mrs_skeptik [129]

Answer:

The answer is: Pressure increases linearly with the depth

Explanation:

In this case, the definition of pressure is:

$P = \frac{F}{A}$

where F = mg is the weight of the fluid over the body, and A is the area of the surface to which the force is exerted. If we consider $\rho = m/V$ , then

$P = \frac{mg}{A} = \frac{\rho Vg}{A}$ .

Volume can be expressed as V = A*h, where A is the cross section of the column of the fluid over the body and h is the height of the column, in other words, the depth.

$P = \frac{A\rho gh}{A}= \rho g h$ ,