Question

Jimmy nutron and his dad are each riding a swing. jimmy has a mass of 25 kilograms, and his dad has a mass of 30 kilograms. jimmy's swing moves with a velocity of 10 meters/second, while dad’s swing moves with a velocity of 8.5 meters/second. jimmy’s kinetic energy is _____ joules. jimmy’s kinetic energy is greater than dad’s because _______

Answer 1

Jimmy's kinetic energy on the swing is calculated to be 1250 joules. The reason it's greater than his dad's is because kinetic energy is affected more by the square of the velocity than by the mass, and Jimmy's swing is moving faster.

Step-by-step explanation:

Jimmy Neutron has a mass of 25 kilograms and is moving with a velocity of 10 meters per second on his swing. To calculate his kinetic energy, we use the formula:

KE = (1/2)mv²

Plugging in Jimmy's mass and velocity:

KE = (1/2) × 25 kg × (10 m/s)²

KE = (1/2) × 25 kg × 100 m²/s²

KE = 12.5 kg × 100 m²/s²

KE = 1250 joules

Therefore, Jimmy's kinetic energy is 1250 joules. Jimmy's kinetic energy is greater than his dad's because kinetic energy depends on both mass and the square of velocity. Although Jimmy's mass is less than his dad's, the squared velocity makes a significant difference, resulting in more kinetic energy for Jimmy.