#noFilter (German Edition)

#noFilter (German Edition)

Fisika tolong jawab

di Ketahui :
m=8 kg
v:7,4 m/s
g:9,8N/kg
h:7m
di tanya:
Em=...?
Ek=...?
Ep=...?

tolong jawab

di Ketahui :
m=8 kg
v:7,4 m/s
g:9,8N/kg
h:7m
di tanya:
Em=...?
Ek=...?
Ep=...?

Energi Kinetik - Potensial - Mekanik

Diketahui:

  • m = massa = 8 kg
  • g = gravitasi = 9.8 N/kg
  • h = ketenggian = 7 m
  • v = kecepatan = 7.4 m/s

Ditanya:

  • Ek = ?
  • Ep = ?
  • Em = ?

Jawaban

Cari energi kinetik

Ek = ½ × m × v²

Ek = ½ × 8 × 7.4²

Ek = 4 × 54.76

Ek = 219.04 J ✔

Cari energi potensial

Ep = m × g × h

Ep = 8 × 9.8 × 7

Ep = 78.4 × 7

Ep = 548.8 J ✔

Cari energi mekanik

Em = Ek + Ep

Em = 219.04 + 548.8

Em = 767.84 J ✔

Jawaban:

maka Ek = 219,04 Ep = 548,8 Ek = 767,84

Penjelasan:

Ek =

1/2 x m x v^2 =

1/2 x 8 x 7,4^2 =

4 x 54,76 = 219,04

Ep =

m x g x h =

8 x 9,8 x 7 = 548,8

Em =

Ek + Ep =

219,04 + 548,8 = 767,84

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