JEE Main · 2005 · 08 May 2005 · Offline · Chapter_pending

A

and

B

are two like parallel forces. A couple of moment

H

lies in the plane of

A

and

B

and is contained with them. The resultant of

A

and

B

after combining is displaced through a distance

Answer: (B)

Solution

A couple cannot be balanced by a single force; adding a couple of moment

H

to the resultant

R = A + B

simply translates its line of action through a distance

d

such that

R d = H

. Hence

d = \frac{H}{A + B}

JEE Main · 2005 · 08 May 2005 · Offline · Single correct option