Translational equilibrium
- Lesson: 1a10:29
- Lesson: 1b9:08
Translational equilibrium
Lessons
In this lesson, we will learn:
- Meaning of translational equilibrium
- Solving problems involving translational equilibrium
Notes:
- An object can undergo translational motion (motion that changes its position) and rotational motion (motion that changes its angle).
- An object is in translational equilibrium if the velocity of its translational motion is constant. An object that is not moving or an object that is moving in a straight line at a constant velocity would be considered in translation equilibrium. To be in translational equilibrium, the net force acting on the object must be zero (recall Newton's first law: if no unbalanced forces act on an object, it does not accelerate).
ΣF=0N
or equivalently:
ΣFx=0N and ΣFy=0N
ΣF: sum of all forces, in newtons (N)
ΣFx: sum of all force components in x direction, in newtons (N)
ΣFy: sum of all force components in y direction, in newtons (N)
- 1.Translational equilibrium of hanging massesa)
A 95.0 kg object is suspended by two cables attached to the ceiling and wall as shown. What is the tension in cable attached to the wall?
b)A 42.0 kg object is suspended by two cables attached to the ceiling and wall as shown. What is the tension in cable attached to the wall?