What is the mechanical advantage of the frictionless plane shown below?
Inclined plane
A. 0.64
B. 1.31
C. 1.4
D. 1.56

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?

In an experiment, how can i change human errors? be specific.