Applied Mechanics - Engineering

Q1:

A weight of 100 kg is supported by a string whose ends are attached to pegs A and B at the same level shown in below figure. The tension in the string is

A 50 kg

B 75 kg

C 100 kg

D 120 kg

ANS:C - 100 kg

By Lamis theoram.

100/sin60 = F2/sin (180-60).

F2= 100 * sin120/sin 60 = 100.