15-10-2021
Physics

contestada

6. A girl pushes her little brother on his sled with a force of 300 N for 750 m.
a. How much work is this?
b. How much energy is used?
c. How much power does she use if it takes her 25s?
d. How much power does she use if she runs and complete the 750m in 10s?

Respuesta :

malakelsherbini malakelsherbini

15-10-2021

w=225000 J

E=225000 J

P=9000 W

P=22500 W

Ew=Fd=E

P=E/t

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