97.4k views
4 votes
How do i do this yall

How do i do this yall-example-1

1 Answer

4 votes

The tension in the left-hand cable is 110 N.

We can solve this problem using the following steps:

Equations of equilibrium:

∑F_x = 0


T_2 cos
\theta_2 -
T_1 cos
\theta_1 = 0

∑F_y = 0


T_2 sin
\theta_2 +
T_1 sin
\theta_1 - W = 0

Solving for
T_2:

From the first equation, we can solve for
T_1:


T_1 cos
\theta_1 =
T_2 cos
\theta_2

Substituting this into the second equation, we get:


T_2 sin
\theta_2 +
T_2 cos
\theta_2 / cos
\theta_1 * sin
\theta_1 - W = 0


T_2 sin
\theta_2 +
T_2 cos
\theta_2 tan
\theta_1 - W = 0

We know the following values:

W = 624 N


\theta_1 = 62°


\theta_2 = 50°

We can also solve for cos
\theta_2 using the Pythagorean theorem:

cos
\theta_2 =
√((1 - sin^2 \theta_2))

cos
\theta_2 = √(1 - 0.64)

cos
\theta_2 = 0.766

Substituting all of these values into the equation above, we get:


T_2 sin 50° +
T_2 * 0.766 * tan 62° - 624 = 0


T_2 = 110 N

Therefore, the tension in the left-hand cable is 110 N.

User James Cross
by
8.4k points