Applied Mechanics - Engineering

Q1:

If three rigid rods are hinged together to form a triangle and are given rotary as well as translatory motion, the number of instantaneous centres of the triangle, will be

A 1

B 2

C 3

D 4

E 5.

ANS:C - 3

Instantaneous centre can be obtained by the equation n (n-1)/2=3 (3-1)/2 = 3.