Which object has the greatest kinetic energy?
A blue car with a mass of 500 kg moving at 30 M/S
A green car with a mass of 500 kg moving at 21M/S
Yellow car with a mass of 500 kg moving at 12 M/S
A red car mass of 500 kg moving at 3M/S
What is the correct answer?
The correct answer is the blue car with a mass of 500 kg moving at 30 m/s.
To calculate kinetic energy, we use the formula:
Kinetic energy = (1/2) * mass * velocity^2
Plugging in the values for each car, we get:
Blue car: (1/2) * 500 kg * (30 m/s)^2 = 225,000 J
Green car: (1/2) * 500 kg * (21 m/s)^2 = 110,250 J
Yellow car: (1/2) * 500 kg * (12 m/s)^2 = 36,000 J
Red car: (1/2) * 500 kg * (3 m/s)^2 = 2,250 J
Therefore, the blue car has the greatest kinetic energy with a value of 225,000 J.
To determine which object has the greatest kinetic energy, we can use the equation for kinetic energy:
Kinetic Energy (KE) = 1/2 * mass * velocity^2
Let's calculate the kinetic energy for each car and compare them:
1. Blue car:
Mass = 500 kg
Velocity = 30 m/s
KE = 1/2 * 500 kg * (30 m/s)^2 = 225,000 J
2. Green car:
Mass = 500 kg
Velocity = 21 m/s
KE = 1/2 * 500 kg * (21 m/s)^2 = 110,250 J
3. Yellow car:
Mass = 500 kg
Velocity = 12 m/s
KE = 1/2 * 500 kg * (12 m/s)^2 = 36,000 J
4. Red car:
Mass = 500 kg
Velocity = 3 m/s
KE = 1/2 * 500 kg * (3 m/s)^2 = 2,250 J
Comparing the calculated values, we can see that the blue car has the greatest kinetic energy, with a value of 225,000 J. Therefore, the blue car has the greatest kinetic energy among the given options.
To determine which object has the greatest kinetic energy, we need to use the formula for kinetic energy:
Kinetic energy (KE) = 1/2 * mass * velocity^2
Let's calculate the kinetic energy for each car and compare the results:
For the blue car:
Mass = 500 kg
Velocity = 30 m/s
KE = 1/2 * 500 kg * (30 m/s)^2 = 225,000 Joules
For the green car:
Mass = 500 kg
Velocity = 21 m/s
KE = 1/2 * 500 kg * (21 m/s)^2 = 220,500 Joules
For the yellow car:
Mass = 500 kg
Velocity = 12 m/s
KE = 1/2 * 500 kg * (12 m/s)^2 = 36,000 Joules
For the red car:
Mass = 500 kg
Velocity = 3 m/s
KE = 1/2 * 500 kg * (3 m/s)^2 = 2,250 Joules
Comparing the kinetic energy values, we can see that the blue car has the greatest kinetic energy with 225,000 Joules.