如何计算Kinetic Energy
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Kinetic energy is the energy an object possesses due to its motion. It depends on both mass and velocity — doubling the mass doubles kinetic energy, but doubling the velocity quadruples it.
分步指南
- 1KE = ½mv²
- 2m = mass in kg, v = velocity in m/s
- 3KE is in joules (J)
例题解析
输入
1 kg at 10 m/s
结果
50 J
½ × 1 × 100 = 50 J
输入
1,500 kg car at 30 m/s (108 km/h)
结果
675,000 J = 675 kJ
½×1500×900
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