decosta1928 decosta1928

03-05-2020
Physics

contestada

a block and tackle pulley system of 6 pulley uses 300N to overcome 1200N.find efficiency

Respuesta :

MathPhys MathPhys

03-05-2020

Answer:

66.7%

Explanation:

There are 6 pulleys, so the mechanical advantage is 6.

The theoretical force needed to overcome 1200 N is therefore:

1200 N / 6 = 200 N

The actual force is 300 N. So the efficiency is:

200 N / 300 N × 100% = 66.7%

Answer Link

Otras preguntas

help plz ill give brainlist

What is the range of sunspot activity between 1700 and 1800

Two football players are pushing a 60 kg blocking sled across the field at a constant speed of 1.5 m/s. the coefficient of kinetic friction between the grass an

Write 1.74 as a mixed number or fraction in simplest form.

Women who protested and campaigned for the right to vote were known as ___.

Fred, a department manager, is attending the monthly budget planning meeting, where all the department managers report on their current status. both before and

which of the following sets does the number 0 belong? integers rational whole irrational natural

The poliovirus protease cleaves the cellular eif-4g protein. why doesn't this affect the virus?

To make a sandwich, Steve uses one-eighth lb of ham and one-fifth lb of cheese. How much more cheese than ham does he use?

Which quotation from "Drive-in movies" best shows the perspective of the narrator? 1. More Ticks had migrated is scout. 2. The Paint was coming off. 3. My arms