Answer:
The truck has about 9,340,000 Joules of kinetic energy
The astronaut has about 2,334,105,617.3 Joules of kinetic energy
Explanation:
Given:
- m_t = 20000kg
- v_t = 110 km/h = 30.56 m/s
- m_a = 80kg
- v_a = 27500 km/h = 7638.89 m/s
Kinetic Energy of the Truck
KE = 1/2(m_t × (v_t)^2)
KE = 1/2(20,000kg × (30.56 m/s)^2)
KE = 1/2(20,000kg × 934 m/s^2)
KE = 1/2(18,680,000 kg m/s^2)
KE ≈ 9,340,000 J
Kinetic Energy of the Astronaut
KE = 1/2(m_t × (v_t)^2)
KE = 1/2(80kg × (7638.89 m/s)^2)
KE = 1/2(80kg × 58,352,640.4 m/s^2)
KE = 1/2(4,668,211,234.6 kg m/s^2)
KE ≈ 2,334,105,617.3 J
The astronaut's kinetic energy is ≈ 24990% higher than the truck's kinetic energy due to a higher velocity
