Seudónimo Seudónimo

21-11-2021
Physics

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

Respuesta :

pamelp260 pamelp260

21-11-2021

Answer:

W = F× d

= 300×750

= 225000

E = 225000

P = 300×750/25 = 9000

P = 300× 750/10 = 22500

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