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Whenever anything falls down, rolls downward, etc., gravitational potential energy will be converted into kinetic energy.
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Increase mass For a truck increase the load on the truck
Drive alongside it in another vehicle and then move stuff onto the truck. This will increase the mass of the [whole] truck and so increase its KE. This is dangerous so do not try it!
Kinetic energy is equal to mv2/2, where m is mass and v is speed. Since speed is squared in this formula, changes in speed have a greater influence on the kinetic energy than do changes in mass.
a matter of mass
The truck - greater mass.
What you refer to as George overdrive is known in the trucking industry as Georgia overdrive. It is going downhill with your truck out of gear. This is gone down grades to allow the truck to accelerate beyond the normal top speed of the engine in to gear without damaging the engine.
Clearly the truck, as it is heavier
No. The large truck has more kinetic energy than the car. Mass is a variable in the equation for determining kinetic energy. Kinetic energy equals 1/2 the mass of the object time the speed (really velocity) squared.
The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.The answer will depend on the speed at which the truck travels.
When they're parked they do (which is zero). If a truck and golf cart were both moving at the same non-zero speed, the truck, being more massive, would have the greater kinetic energy.