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How does kinetic affect the stopping distance of a vehicle traveling at 30 mph compared to the same vehicle traveling at 60 mph?
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∙ 8y ago
The kinetic energy of the vehicle when it is travelling faster is four times as great. It the brakes apply the same retardation and the friction from the tires on the road surface is unchanged then the stopping time will be four times as long.
Tyreek Marquardt
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What energy or momentum of a vehicle can be offset by allwoing an increase in stopping distance?
kinetic
What is kinetic energy loss?
The braking force x stopping distance (assuming constant braking force) is equal to the loss of kinetic energy of the vehicle.And if it's not constant, you can integrate the dot product of the force vector and the differential x-vector.If you want the power of heat generation, you will need to find how much energy is being dissipated (i.e. how much kinetic energy is lost) per unit of time.
Which is the most useful in determining kinetic energy of a 50 g battery powered car traveling a distance of 10 m?
The distance travelled is irrelevant; you need the speed. (Perhaps the problem states that the toy car travels so-and-so far in so-and-so much time; in this case, you can figure out the speed.) The formula for kinetic energy is: KE = (1/2)mv2, that is, 1/2 times the mass times the square of the speed.
What If you have four balls all traveling at 5 meters per second which one has the most kinetic energy?
If several objects have the same speed and the same velocity,then each has the same kinetic energy.
Is an increase in kinetic energy directly proportional to the time it takes for an object to fall slash distance it falls?
The kinetic energy of a falling object is directly proportional to the distance it falls.But the distance is not directly proportional to the time in fall, so the KE is not directly proportionalto the time either.
What energy or momentum of a vehicle can be offset by allwoing an increase in stopping distance?
kinetic
How does friction affect stopping distance?
Some of the kinetic energy of a body in motion is used up in overcoming friction, which acts in the direction opposite to that of the motion. The reduction in energy means that the stopping force needs less time to do its work.
What energy is in a traveling bullet?
kinetic energy
How does friction affect the motion of a vehicle in the context of tire surface road conditions including skidding braking force braking distance thinking distance and stopping distance?
Tyre surface: If the tyre is new, it will have surface with depressions which will offer more friction compared to old tyre whose surface-depressions are worn out and it is more flat, so it offers less friction. Therefore, new tyre will have less stopping distance, as force of friction is more. Thinking distance is affected neither by friction between tyre and road, nor by friction between brake and tyre. If road has a wet surface, it has less friction so the vehicle will skid farther, and vice versa. The braking force, i.e, friction between tyre and brake is unaffected by road condition or tyre surface. Hence the distance the vehicle travels WHILE retarding due to "braking force", is not same as stopping distance, because even when the wheels are stopped rotating due to braking force, the car will skid a little distance- this total distance is the stopping distance.
Why if the speed of a car is doubled its braking distance is much more than doubled?
Because kinetic energy KE ~ V^2 (varies as the square of the speed). So ke ~ v^2 and KE ~ V^2 and when V = 2v, doubled, we have KE/ke = (V/v)^2 = (2v/v)%2 = 4 so that KE = 4 ke. QED. The new kinetic energy is four times the old. And, ta da, that means there is four times as much energy for the brakes to sap and reduce to zero kinetic energy, which means V = 0 is the end speed (stopped). So by the work function, which you should know by now, we have WE = FS where F is the braking force (friction) and S is the stopping distance. We assume the braking force remains the same for both speeds. Then KE - WE = 0, meaning the kinetic energy is sapped by the work so there is none left. And we have KE = WE = FS; so S = WE/F = KE/F and the stopping distance varies as the kinetic energy. So when the speed is doubled and the kinetic energy is quadrupled, the stopping distance is quadrupled because there is now four times as much kinetic energy to expend in stopping. QED.
What is the kinetic energy of a 22500 lb truck traveling 55 mph?
The kinetic energy of a 22500 lb truck traveling 55 mph is 1/2mv2 is 3084.808kJ.
How do you find the ratio of kinetic energy?
The answer depends on what two (or more) things the ratio is meant to compare. The kinetic energy of several objects? The kinetic energy of an object compared to its total energy? The kinetic energy compared to its engine size?
What is the distance between kinetic and potential energy?
Kinetic and potential energy are a type of energy, not a measurement of distance.
What is the kinetic energy of a bicyclewith mass 10 kg traveling at a velocity of 3ms?
The bike's kinetic energy is 45 joules.
Why does a train have more kinetic energy than a car traveling at the same speed?
Kinetic energy also depends on mass.
What type of energy a car is traveling 45 mph have?
Kinetic Energy
Calculate the kinetic energy in joules of an automobile weighing 2135 lb and traveling at 55 mph?
The kinetic energy in joules of an automobile weighing 2135 lb and traveling at 55 mph is 2.9 x 105.
