An object with a mass of 5 kg is moving at a speed of 10 m/s, another object with of mass of 10 kg is moving at a speed of 5 m:s which of the objects has higher kinetic energy
Kinetic energy is given by the formula:
KE = 0.5 * mass * velocity^2
For the first object, with a mass of 5 kg and a speed of 10 m/s:
KE1 = 0.5 * 5 kg * (10 m/s)^2 = 0.5 * 5 kg * 100 m^2/s^2 = 250 J
For the second object, with a mass of 10 kg and a speed of 5 m/s:
KE2 = 0.5 * 10 kg * (5 m/s)^2 = 0.5 * 10 kg * 25 m^2/s^2 = 125 J
Hence, the object with a mass of 5 kg, moving at a speed of 10 m/s has a higher kinetic energy of 250 J compared to the object with a mass of 10 kg, moving at a speed of 5 m/s with a kinetic energy of 125 J.
To find out which object has higher kinetic energy, we can use the formula for kinetic energy:
Kinetic Energy (KE) = (1/2) * mass * velocity^2
For the first object with a mass of 5 kg and a speed of 10 m/s:
KE1 = (1/2) * 5 kg * (10 m/s)^2 = 250 Joules
For the second object with a mass of 10 kg and a speed of 5 m/s:
KE2 = (1/2) * 10 kg * (5 m/s)^2 = 125 Joules
Comparing the two kinetic energies, we can see that the first object with a mass of 5 kg and a speed of 10 m/s has higher kinetic energy, with 250 Joules.
To determine which object has a higher kinetic energy, we can use the formula for kinetic energy:
Kinetic energy (KE) = 1/2 * mass * velocity^2
We plug in the values for each object and compare the results.
For the first object with a mass of 5 kg and a speed of 10 m/s:
KE1 = 1/2 * 5 kg * (10 m/s)^2
= 1/2 * 5 kg * 100 m^2/s^2
= 250 J (joules)
For the second object with a mass of 10 kg and a speed of 5 m/s:
KE2 = 1/2 * 10 kg * (5 m/s)^2
= 1/2 * 10 kg * 25 m^2/s^2
= 125 J (joules)
Comparing the two values, we can see that the first object (5 kg at 10 m/s) has a higher kinetic energy of 250 J, compared to the second object (10 kg at 5 m/s) with a kinetic energy of 125 J. Therefore, the first object has a higher kinetic energy.