two city buses are traveling at 24 mph the buses are the same model and year one bus has 30 passengers. the other bus has twelve which is the best prediction
the buses kinetic energies will depend on their routes
the buses will have the same amount of kinetic energy
the bus with 30 passengers will have less kinetic energy
the bus with 12 passengers will have less kinetic energy
1. What does an object's kinetic energy depend on?
its mass and speed
2. Two city buses are traveling at 24 miles per hour. The buses are the same model and year. One bus has 30 passengers. The other bus has 12 passengers. Which is the best prediction?
The bus with 12 passengers will have less kinetic energy.
3. A softball player hits a ball at 78 miles per hour. Then she hits a ball at 80 miles per hour. Which is the best prediction?
The ball hit at 80 miles per hour will have more kinetic energy.
4. A hawk is chasing a sparrow. At the beginning of the chase, the hawk's kinetic energy is 5.1 Joules. At the end of the chase, the hawk doubles its speed. What is the best prediction for its kinetic energy at the end of the chase?
20.4 J
5. A student rolls two marbles down an inclined plane. One marble has a mass of 4.8 grams. The student calculates its kinetic energy to be 0.0035 Joules when it reaches the end of the plane. The second marble has a mass of 2.4 grams. What is the best prediction for its kinetic energy at the end of the plane?
0.00175 J
the bus with 12 passengers will have less kinetic energy
dOrA is correct
dOrA I love u :')
To determine which is the best prediction regarding the kinetic energies of the buses, we need to understand how kinetic energy is calculated and what factors affect it.
Kinetic energy is given by the formula: KE = 0.5 * mass * velocity^2
Here, mass refers to the mass of the object (in this case, the buses), and velocity refers to the speed at which the object is traveling.
Given that both buses are traveling at the same speed of 24 mph, the only factor that can potentially influence the kinetic energy is the mass of the buses.
Out of the given options, the best prediction can be determined as follows:
1. "The buses' kinetic energies will depend on their routes": This prediction is not accurate because the routes have no direct effect on the kinetic energy of the buses. Kinetic energy primarily depends on mass and velocity, and not on the specific routes taken.
2. "The buses will have the same amount of kinetic energy": Since both buses have the same model and year, it is likely that their masses are similar. Therefore, if the buses have the same mass (or very similar masses), and they are traveling at the same velocity, then they will indeed have the same amount of kinetic energy. This is a plausible prediction.
3. "The bus with 30 passengers will have less kinetic energy": The number of passengers on a bus does not directly affect its mass. Unless the average mass of a passenger is significant enough to affect the overall mass of the bus, the number of passengers alone should not significantly impact the kinetic energy.
4. "The bus with 12 passengers will have less kinetic energy": Similar to the previous option, the number of passengers alone should not drastically affect the mass of the bus. Therefore, the number of passengers should not directly impact the kinetic energy.
Based on this analysis, the best prediction is that the buses will have the same amount of kinetic energy, given that their masses are similar and they are traveling at the same velocity.