guwop18 guwop18

16-12-2018
Physics

contestada

a 50n box is lifted 2 meters in 3 seconds.

a. how much work is done for the box?

b. is the work or positive?

c. how much power is needed to lift the box?

Respuesta :

georgestirban georgestirban

21-12-2018

F=G=50 N

L=F*d=50*2=100 J

is the work

P=L/t=100/3=33.33 W

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