. Advertisement .

..3..

3- Two blocks with masses M, and M2 hang one under the other. For this problem, take the positive direction to be upward, and use g for the magnitude of the acceleration due to gravity. or Parts A and B assume the blocks are at rest.

......... ADVERTISEMENT .........

..8..

**a**– Find T

_{2}, the tension in the lower rope.

Express your answer in terms of some or all of the variables M

_{1}, M_{2}, and g.**(6 pts)****b**– Find T., the tension in the upper rope.

Express your answer in terms of some or all of the variables M1, M2, and g.

**(6 pts)****c**– For Parts C and D the blocks are now accelerating upward (due to the tension in the strings) with acceleration of magnitude a. Find T_{2}, the tension in the lower rope. Express your answer in terms of some or all of the variables M_{1}, M_{2}, and g.**(7 pts)****d**– Find T1, the tension in the upper rope. Express your answer in terms of some or all of the variables M1, M2, and g.

**(6 pts)**

. Advertisement .

..4..

♦ Relevant knowledge

Tension is the force of contact that is exerted by string, rope, chain when it comes into close contact with an object. The principle for tension forces is pulling because it is also the force itself, hence, the unit of measurement is Newton that is kg meters for every second.

For finding tension in lower rope, we will use Newtons 2nd Law for lower blocks and Newtons 2nd Law for combined masses for upper rope.