Final answer:
The kinetic energy of a 74.0 kg man traveling in a car at 52.0 m/s is 100,048 J (Joules), calculated using the formula KE = ½mv².
Step-by-step explanation:
The kinetic energy (KE) of an object can be calculated using the formula KE = ½mv², where m is the mass of the object and v is its velocity. For a 74.0 kg man traveling in a car at a speed of 52.0 m/s, we can plug these values into the formula:
KE = ½ × 74.0 kg × (52.0 m/s)²
KE = ½ × 74.0 kg × 2704 m²/s²
KE = ½ × 74.0 kg × 2704
KE = 37.0 kg × 2704
KE = 100,048 J (Joules)
Therefore, the kinetic energy of the man traveling in the car is 100,048 J (or 100.048 kJ).