Question

A machine has a velocity ratio 5 and is 80% efficient. What effort would be needed to lift a load of 2000N with the aid of this machine?

Answer 1

(2000/5)/0.8 = 500 N

Answer 2

Plz help me

Answer 3

Where is the 0.8 coming from please

Answer 4

80% which is the same thing as 80÷100 = 0.8

Answer 5

Answer

Answer 6

I want to join

Answer 7

I want to learn

Answer 8

I beg an help guy's/friends

Answer 9

Please can you put steps

Answer 10

I got the answer

Answer 11

No thanks