lynnblufordmann lynnblufordmann

21-03-2020
Physics

contestada

A pulley block and tackle is used to lift a piano. The piano weighs 2000N. If the worker used 100 N of force to lift the piano, what is the mechanical advantage of the block and tackle?

.2

.1

10

20

Respuesta :

kyrahaught7 kyrahaught7

21-03-2020

10 because it’s right

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