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neonofarm [45]
3 years ago
10

The weight of a block on the inclined plane is 500 N and the angle of incline is 30 degrees. What is the magnitude of the force

of friction for static equilibrium? What is the normal force of the surface pushing up on the block?

Physics
1 answer:
yanalaym [24]3 years ago
3 0

Answer:

250 N

433 N

Explanation:

N = Normal force by the surface of the inclined plane

W = Weight of the block = 500 N

f = static frictional force acting on the block

Parallel to incline, force equation is given as

f = W Sin30

f = (500) Sin30

f = 250 N

Perpendicular to incline force equation is given  

N = W Cos30

N = (500) Cos30

N = 433 N

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Problem 31:
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Bi. Current in 15.4 Ω (R₁) is 7.14 A.

Bii. Current in 21.9 Ω (R₂) is 5.02 A.

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Bi. Determination of the current in 15.4 Ω (R₁)

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Bii. Determination of the current in 21.9 Ω (R₂)

Voltage (V) = 110 V

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Biii. Determination of the current in 11.7 Ω (R₃)

Voltage (V) = 110 V

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Current (I₃) =?

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110 = I₃ × 11.7

Divide both side by 11.7

I₃ = 110 / 11.7

I₃ = 9.40 A

Therefore, the current in 11.7 Ω (R₃) is 9.40 A.

C. Determination of the total current.

Current 1 (I₁) = 7.14 A

Current 2 (I₂) = 5.02 A

Current 3 (I₃) = 9.40 A

Total current (Iₜ) =?

Iₜ = I₁ + I₂ + I₃

Iₜ = 7.14 + 5.02 + 9.40

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Therefore, the total current in the circuit is 21.56 A

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