A thin horizontal bar AB of negligible weight and length L is pinned to a vertical wall at A and supported by B by a thin wire BC that makes an angle (theta) with the horizontal. A weight W can be moved anywhere along the bar as defined by the distance x from the wall.(adsbygoogle = window.adsbygoogle || []).push({});

a) Find the tension T as a function of x

b) Find the horizontal and the vertical components of the force exerted on the bar by the pind at A.

c) With W = 315N, L = 2.76 m, and (theta) = 32deg, find the maximum distance x before the wire breaks if the wire can withstand a maximum tension of 520N.

what i did was

clockwise torques = counterclockwise torques since system is stationary

cw torques: W

ccw torques: T

Wx = TL

T = Wx/L

ΣFx = 0

Tx = Fax

Tx = Tcos(theta)

Fax = Wcos(theta)/L

ΣFy = 0

Ty = Fay

Ty = Tsin(theta)

Fay = Wxsin(theta)/L

is this correct so far?

if so I'm not sure how to solve for x using the angle (theta)

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Tension & Torque

**Physics Forums | Science Articles, Homework Help, Discussion**