Question

A body of weight w1 is suspended from the ceiling of a room through a chain of weight w2 . the ceiling pulls the chain by a force

Answer 1

Draw fbd of body Tension by Chain on body acting upward (T1) Weight of body acting downward (w1) (T1)= w1 Now draw fbd of chain Tension on chain by ceiling (T2) acting upward Tension on chain by body (T1) acting downward Weight of chain acting downward w2 T2=T1 +W2 Put value of T1 from equations T2 =w1+w2 The ceiling pulls the chain by a force w1+w2

Answer 2

Answer:

See diagram for clear understanding of the action forces and reaction forces.

Since the body, chain and ceiling are in equilibrium and at rest, the action and reaction forces are equal. 

See the free body diagrams for the body, chain and ceiling.

The force with which the chain is pulled by ceiling is = W1 + W2