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

What is the fastest thing known on Earth

Please help Thank you

Which ratio is equivalent to the ratio 32:40? A 16 to 20 B 30:16 C 16 to 30 D 20:16

16m,20m,8m,10, A= ___ square meter?

Which figure represents the image of trapezoid LMNP after a reflection across the x-axis 0 Figure A 0 Figure B 0 Figure C 0 Figure D Answer: A

You bought a shirt with the price of $135.50, and the sale tax rate is 8.25% whats the sales tax

5x+7=4 What is the first step in solving this equation

Dan built a cubed shaped toy box of wood for his daughter. Each side of the toy box measures 2feet. How much wood did Dan use to build the toy box?

given the slope intercept form of the equation identify the y intercept y=2x

Which statements about a democratic state are true? Choose all answers that are correct. A Individuals who criticize the government can be jailed or executed. B