work done

?
A 1200kg is being lifted by a crane through a height of 12m. The power supply for the crane is 230 v. the lift takes 15 secconds. -efficiency of the system is 35%. how much work is done ?
1200x10x12=144000
1 of 5
What is the power needed ?
144000*15=9600
2 of 5
power needed and to do the work?
9600*0.35=27428 w
3 of 5
current?
27428*230=119
4 of 5
choose the fuse: 6A 10A 16A 20A 32A 50A
119 - NOT POSSIBLE
5 of 5

Other cards in this set

Card 2

Front

What is the power needed ?

Back

144000*15=9600

Card 3

Front

power needed and to do the work?

Back

Preview of the front of card 3

Card 4

Front

current?

Back

Preview of the front of card 4

Card 5

Front

choose the fuse: 6A 10A 16A 20A 32A 50A

Back

Preview of the front of card 5

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