Final answer:
To find the kinetic energy of a falling apple with a mass of 20 kg and a velocity of 12 m/s, apply the formula KE = 0.5 × m × v2, resulting in a kinetic energy of 1440 Joules.
Step-by-step explanation:
The kinetic energy (KE) of an object can be calculated using the equation KE = 0.5 × m × v2, where m is the mass of the object and v is its velocity. In the case of the falling apple with a mass of 20 kg and a velocity of 12 m/s, we would substitute these values into the equation to find the KE.
When we do the math, KE = 0.5 × 20 kg × (12 m/s)2 = 0.5 × 20 × 144 = 1440 Joules.
It's important to note that typically, apples do not have a mass of 20 kg, and the given mass is likely a typographical error. The mass of a common apple would be closer to 0.2 kg.