163k views
5 votes
1. A 10 kg mass is hanging in the configuration below. Find T₁ and T₂

1. A 10 kg mass is hanging in the configuration below. Find T₁ and T₂-example-1
User DanY
by
8.0k points

1 Answer

2 votes

Answer:

T₁ = 71.7 N

T₂ = 50.7 N

Step-by-step explanation:

Sum of forces in the y direction:

∑F = ma

T₁ sin 60° + T₂ sin 45° − mg = 0

T₁ sin 60° + T₂ sin 45° = mg

T₁ (√3 / 2) + T₂ (√2 / 2) = mg

Sum of forces in the x direction:

∑F = ma

-T₁ cos 60° + T₂ cos 45° = 0

T₁ cos 60° = T₂ cos 45°

T₁ / 2 = T₂ (√2 / 2)

T₁ = T₂ √2

Substitute:

(T₂ √2) (√3 / 2) + T₂ (√2 / 2) = mg

T₂ (√6 / 2) + T₂ (√2 / 2) = mg

T₂ (√6 / 2 + √2 / 2) = mg

1.932 T₂ = (10 kg) (9.8 m/s²)

T₂ = 50.7 N

T₁ = T₂ √2

T₁ = 71.7 N

User Cycero
by
8.6k points