Two blocks of weight 
and 
are attached to two ropes, 
and 
.
The blocks hang vertically. The mass of the ropes is negligible. What is the tension in and the tension in ?
Roughwork.
As always start with free-body diagrams. Take upward positive. First the lower block:
Then the higher block:
Or alternatively,
Ans. 
This problem is not to be attempted.
falls vertically with a constant speed of 
. The upward force acting on the skydiver is approximately
.
.
.
.
