170k views
4 votes
A mover uses a pulley to lift a 2500N piano up to a second story balcony. The mover pauses to wipe sweat from his forehead while holding the rope tight in one hand. Since the piano is not moving at this time, what is the tension force in the rope while the piano is dangling still in the air?

User Lindstrom
by
6.0k points

2 Answers

6 votes

Final answer:

The tension force in the rope while the piano is still in the air and not moving is equal to the weight of the piano, which is 2500N.

Step-by-step explanation:

The tension force in the rope while the piano is still in the air and not moving is equal to the weight of the piano. The weight of the piano is given as 2500N. Therefore, the tension force in the rope is also 2500N.

User Raylight
by
6.3k points
4 votes

Answer:

2500 N

Step-by-step explanation:

Tension force may be defined as the force which is transmitted along a cable, rope, or through a string which is stretchable and is puled tight by the forces acting from the opposite sides. It is directed along the length of the string or the rope.

In the context, a pulley string holds a 2500 N piano that is used to lift it to second story balcony. When the piano is held stationary by the mover, the tension force acting on the rope is the weight force or the gravitational force that acts on the piano which is 2500 N. The tension force balances the the weight force of the piano when it is not moving.

User Proximo
by
5.7k points