Respuesta :
Answer:
The answer to your question is: total energy = 30100.4 J
Explanation:
Kinetic energy (KE) is the energy due to the movement of and object, its units are joules (J)
Data
mass = 1280 kg
speed = 4.92 m/s
Force = 509 N
distance = 28.7 m
Formula
[tex]KE = \frac{1}{2} mv^{2}[/tex]
Work = Fd
Process
- Calculate Kinetic energy
- Calculate work
- Add both results
KE = [tex]\frac{1}{2} (1280)(4.92)^{2}[/tex]
KE = 15492.1 J
Work = (509)(28.7)
Work = 14608.3 J
Total = 15492.1 + 14608.3
Total energy = 30100.4 J
Answer:
30,100 J
Explanation:
Work = change in energy
W = KE₂ − KE₁
Fd = KE − ½ mv²
(509 N) (28.7 m) = KE − ½ (1280 kg) (4.92 m/s)²
KE = 30,100 J