Final answer:
A rolling brown bear with a mass of 1120 kg and a velocity of 40 m/s has kinetic energy, which can be calculated as 896,000 joules using the formula kinetic energy equals half the mass times velocity squared.
Step-by-step explanation:
A rolling brown bear traveling with a velocity of 40 m/s and with a mass of 1120 kg has kinetic energy (KE). To calculate the kinetic energy of the bear, we use the formula KE = 0.5 × m × v², where m is the mass of the bear and v is its velocity.
Thus, the kinetic energy can be computed as:
KE = 0.5 × 1120 kg × (40 m/s)²
KE = 0.5 × 1120 kg × 1600 m²/s²
KE = 560 kg × 1600 m²/s²
KE = 896,000 kg·m²/s² = 896,000 J (joules)
The rolling brown bear has a kinetic energy of 896,000 joules.