Answer :
Final answer:
The kinetic energy of the motorcycle and its driver, with a mass of 145 kg and speed of 25 m/s, is 45,312.5 J (joules).
Explanation:
To calculate the kinetic energy of the motorcycle, we use the formula:
KE = 1/2 mv²
where KE is the kinetic energy, m is the mass, and v is the velocity.
The mass of the motorcycle and its driver is 145 kg, and the given speed is 25 m/s. Plugging the values into the formula:
KE = 1/2 × 145 kg × (25 m/s)²
KE = 1/2 × 145 kg × 625 m²/s²
KE = 0.5 × 145 kg × 625 m²/s²
KE = 45312.5 kg·m²/s²
Therefore, KE = 45,312.5 J (joules), which is the kinetic energy of the motorcycle.
