Question

Anak mengayuh speda 10 m/s . Massa anak 46 kg sdngkn 4 kg makan energi kinetiknya sbesar ? Plss ulangannn

Answer 1

Ek = 1/2*v^2*m
Ek = 1/2*10^2*46
Ek = 1/2*100*46
Ek = 100*23
Ek = 2300 Joule

Answer 2

EK
= 1/2 × m × v²
= 1/2 × (46kg + 4kg) × (10m/s)²
= 1/2 × 50 × 100
= 25 × 100
= 2.500 Joule
= 2,5 kJ