A piano mover raises a 1000-N piano at a constant speed using a very light rope in a frictionless pulley system, as shown in the figure. With what force is the mover pulling down on the rope?
A) 2000 N
B) 1000 N
C) 500 N
D) 250 N
E) Depends on the speed of the piano.

Question

A piano mover raises a 1000-N piano at a constant speed using a very light rope in a frictionless pulley system, as shown in the figure. With what force is the mover pulling down on the rope? 
A) 2000 N 
B) 1000 N 
C) 500 N 
D) 250 N 
E) Depends on the speed of the piano.

Quizplus · Accepted Answer

The Answer of A piano mover raises a 1000-N piano at a constant speed using a very light rope in a frictionless pulley system, as shown in the figure. With what force is the mover pulling down on the rope? 
A) 2000 N 
B) 1000 N 
C) 500 N 
D) 250 N 
E) Depends on the speed of the piano.

A Piano Mover Raises a 1000-N Piano at a Constant