- #1
sevens
- 8
- 0
The figure shows two 1.0 kg blocks connected by a rope. A second rope hangs beneath the lower block. Both ropes have a mass of 250 g. The entire assembly is accelerated upward at
3.0 m/s^2
i found the force that pulls the system to be 32.0N
However the followup question states:
What is the tension at the top end of rope 1?
for a I have
[tex]
\sum{}\ = F - T = ma
[/tex]
and for b I have
[tex]
\sum{}\ = T - W = ma
[/tex]
since i knew my a was 3.0 m/s^2 i made the equations equal to each other, to find my tention.
[tex]
(T - W)m = (F-T)m
[/tex]
I arived at the answer 25.1N which is wrong. i think it may have to do with the fact that the ropes have a mass I thought tension through out a rope was uniform no matter where on the string you are. :grumpy:
3.0 m/s^2
i found the force that pulls the system to be 32.0N
However the followup question states:
What is the tension at the top end of rope 1?
for a I have
[tex]
\sum{}\ = F - T = ma
[/tex]
and for b I have
[tex]
\sum{}\ = T - W = ma
[/tex]
since i knew my a was 3.0 m/s^2 i made the equations equal to each other, to find my tention.
[tex]
(T - W)m = (F-T)m
[/tex]
I arived at the answer 25.1N which is wrong. i think it may have to do with the fact that the ropes have a mass I thought tension through out a rope was uniform no matter where on the string you are. :grumpy: