Which object has the greatest kinetic energy?
Responses
a green car with a mass of 500kg moving at 21 m/s
a yellow car with a mass of 500 kg moving at 12 m/s
a red car mass of 500 kg moving at 3 m/s
a blue car with a mass of 500 kg moving at 30 m/s
The blue car with a mass of 500 kg moving at 30 m/s has the greatest kinetic energy.
To determine which object has the greatest kinetic energy, we can use the formula:
Kinetic Energy = (1/2) * mass * velocity^2.
Let's calculate the kinetic energy for each object:
1. For the green car:
Kinetic Energy = (1/2) * 500 kg * (21 m/s)^2 = 110,250 Joules
2. For the yellow car:
Kinetic Energy = (1/2) * 500 kg * (12 m/s)^2 = 36,000 Joules
3. For the red car:
Kinetic Energy = (1/2) * 500 kg * (3 m/s)^2 = 2,250 Joules
4. For the blue car:
Kinetic Energy = (1/2) * 500 kg * (30 m/s)^2 = 225,000 Joules
Comparing the values, we can see that the blue car with a mass of 500 kg moving at 30 m/s has the greatest kinetic energy.
To determine which object has the greatest kinetic energy, we need to use the formula for calculating kinetic energy: KE = (1/2) * mass * velocity^2.
Let's calculate the kinetic energy for each object:
1. Green Car: KE = (1/2) * 500 kg * (21 m/s)^2 = 110,250 Joules
2. Yellow Car: KE = (1/2) * 500 kg * (12 m/s)^2 = 36,000 Joules
3. Red Car: KE = (1/2) * 500 kg * (3 m/s)^2 = 2,250 Joules
4. Blue Car: KE = (1/2) * 500 kg * (30 m/s)^2 = 225,000 Joules
Comparing the results, we can see that the blue car with a mass of 500 kg moving at 30 m/s has the greatest kinetic energy, with a value of 225,000 Joules.