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Elodia [21]
3 years ago
9

The masses of blocks A and B in the figure (Figure 1) are 20.0 kg and 10.0 kg, respectively. The blocks are initially at rest on

the floor and are connected by a massless string passing over a massless and frictionless pulley. An upward force F⃗ is applied to the pulley.
Find the acceleration a⃗ A of block A when F is 124 N.
Physics
1 answer:
Anna35 [415]3 years ago
7 0
<span>You are given the masses of blocks A and B in the figure are 20.0 kg and 10.0 kg, respectively. The blocks are initially at rest on the floor and are connected by a massless string passing over a massless and frictionless pulley. An upward force F⃗ is applied to the pulley. The acceleration is 4.13 m/s^2.

</span>
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TiliK225 [7]

Answer:

B.will increase the maximum static friction between the box and the floor

Explanation:

Because static friction is the force that keeps an object at rest

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Leroy who has a mass of 100kg, is skateboarding at 9.0 m/s when he smacks into a brick wall and comes to a dead stop at 2.0 s
gtnhenbr [62]
F = m*a
a = v/t
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4 years ago
Two long parallel conductors carries I1 and I2 in opposite directions. Determine the magnetic field between the wires
Eddi Din [679]

Answer:

B1 = μ_o•I1/2πr

Explanation:

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3 years ago
A horizontal disk with a radius of 10 cm rotates about a vertical axis through its center. The disk starts from rest at t = 0 an
Tom [10]

Answer:

0.69s

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0.441 t^2 = 0.21

t^2 = 0.21/0.441 = 0.4762

t = \sqrt{0.4762} = 0.69 s

6 0
4 years ago
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