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Why does heavier object have a greater momentum if light and heavy object have the same kinetic energy?
Wiki User
∙ 15y ago
Well, the equation for momentum is mass x velocity. So, p (momentum)= m x v. The equation for kinetic energy is m x v(squared)/2. Let's say that there are two objects. One is 50 kg, and the other is 30 kg. These objects can both have the same kinetic energy, even though one of them has a larger mass. The determining factor in them both having the same kinetic energy, even though one of them has a larger mass is because of different velocities. The 50 kg object has a velocity of 7 meters/second, and the 30 kg object has a velocity of 9.036961141 meters/second. If you do the math, they both have the same kinetic energy (about the same). 50 kg x 7 m/s = 350 kg x m/s. 30 kg x 9.036961141 = 271.1088342. There is an inverse relation between the momentum of an object and its mass. The mass is the factor that influences momentum more than the velocity; that is why an object with a greater mass will have a greater momentum than the one with a lesser mass, only if they both have the same kinetic energy.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agolighter body will have more kinetic energy for same momentum.
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What accounts for the aircraft carrier having a greater kinetic energy than the falling nickel?
The aircraft carrier has a greater kinetic energy because it is so much more massive. Kinetic energy = (1/2)mv2, where m is mass and v is velocity.
Is determined by mass and velocity of an object?
Momentum and kinetic energy are determined by the mass and velocity of an object.Momentum = m• v, where m is mass in kg and v is velocity in m/s.KE = 1/2mv2, where m is mass in kg and v is velocity in m/s.
Compared to the average kinetic energy of 1 mole of water at 0 degree Celsius the average of kinetic energy of 1 more of water is 298 K is?
greater, but the number of molecules is the same
How do you calculate the gain of Kinetic Energy?
You calculate the new kinetic energy, you calculate the old kinetic energy, then you subtract.
Kinetic energy is directly related to?
it is directly related to the weight or mass of an object
When a cannon is fired will the cannon and cannon ball will have the same amount of kinetic energy?
Yes, both have the same energy, but because cannon is heavier the cannon ball gets more momentum and thus greater velocity.
When a bullet is fired from a rifle does the bullet have a greater momentum and kinetic energy than the rifle?
The momenta of the rifle and the bullet are equal and opposite. The bullet has greater kinetic energy than the rifle.
When a bullet is fired from a rifle?
When a bullet is fired from a rifle, a chemical reaction in the gunpowder ignites, rapidly expanding gases build up pressure, and the bullet is propelled out of the barrel at high speed. The rifling in the barrel causes the bullet to spin, improving accuracy and stability. Gravity will eventually cause the bullet to drop due to gravity and air resistance.
Dose a heavier or lighter object have a greater kinetic energy?
Kinetic energy depends on mass, and speed. Since you can't easily change an object's mass, you would basically change its speed.
When kinetic energy doubled what happens to momentum?
Momentum increases
What does not have the same units as the others Kinetic Energy Momentum Potential Energy or Work?
momentum
Why is there not that much kinetic energy in an iceberg?
Kinetic energy is proportional to the square of the speed. If an object doesn't move quickly, it will usually not have much kinetic energy. Or it might, depending on the mass. Make some assumptions about the mass of your iceberg, and its speed, and do the calculations for the amount of kinetic energy (which is equal to 1/2 x mass x speed squared).
Which has the greater kinetic energy a light car or a heavy truck?
Kinetic energy depends on mass and velocity (or speed): KE = (1/2)mv2. At the same speed, obviously the heavier (and more massive) object will have more kinetic energy.
Can a body have kinetic energy with out having momentum?
No.
What does a vehicle's momentum depend on?
Kinetic Energy
What is the energy during momentum?
There is no "energy during momentum". A moving object has both non-zero momentum, and non-zero kinetic energy.
How does kinetic energy change when the momentum is doubled?
energy is quadrupled
