lemajoash lemajoash

16-12-2020
Physics

contestada

Calculate the effort when a load of 72 N is raised using a block and tackle system of 5 pulleys
and efficiency 80%.
A. 11.52N
B. 18N
C. 57.6N
D. 288N

Respuesta :

kathy04santoyo kathy04santoyo

16-12-2020

I would say it’s C but not sure

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