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When a car travels from point A to point B the speed of the car varies along the way what is the total distance traveled by the car divided by the total time traveled by the car?
Speed
Does the speedometer of a car read average speed or instaneous speed?
In a car, the speedometer measured Instantaneous speed. This comes from the assumption that the car does not slow down and speed up fast enough for the speedometer to be able to give an average of the changing speed.
What is the purpose of the transmission in a car?
To match a constant speed engine with a variable speed vehicle.
What is this the result of unbalanced forces making an object speed up?
Acceleration
When riding in a car we can sense changes in speed or direction through the forces the car applies on us. Do we wear seat belts in cars and airplanes to protect us from speed or from acceleration?
Acceleration
Does the height of a car affect a car's speed?
The cross sectional area of a car is dependent on its height. As the area changes the drag on the car, it is likely that increasing the height of a car will also reduce its top speed. There are many other factors that affect a car's maximum speed so a change in height may not always result in a change in top speed.
Does the acceleration of a car affect its speed?
Yes, acceleration directly impacts the change in speed of a car. A higher acceleration will cause the car to increase its speed more rapidly, while a lower acceleration will result in a slower increase in speed.
What is the speed of a car that travels 1400 m in 80 s?
If you divide the distance travelled by the speed, you'll get the speed in meter/second. If you prefer to have the speed in kilometers/hour, multiply this first result by 3.6.
When a car accelerates it changes?
When a car accelerates, its velocity increases over time. This change in velocity is the result of a force being applied to the car, which causes it to speed up.
Traveling down a highway a car changed velocity while its speed remained constant.what would have caused this to happen?
This may have been the result of steering the car around a curve in the road while maintaining constant speed.
Speed is very important in a collision if you triple the speed of a car you increase its force of impact?
True, the force of impact in a collision increases significantly with speed. This is because kinetic energy, which relates to an object's speed, increases with the square of the speed. So, tripling the speed of a car would result in nine times the force of impact in a collision.
How does the type of tires affect the speed of the car?
The size of the tyre affects top speed by altering the gearing. Assuming the engine has the power, a larger size wheel and tyre (diameter) will result in higher top speed.
What speed does the speedometer in a car give?
The speed of the car.
Why does a car use more fuel going 70mph then going 50mph?
two things cause a car to slow down friction from the wheels and drag from the air. cars experience resistance from the air (drag) and this resistance increases as the speed of the air/car increases. As a result the more fuel is needed to keep the car going at a higher constant speed (you have to press harder on the gas pedal at that speed).
Does the height of a ramp affect a toy car's speed going down it?
Yes, the height of a ramp will impact a toy car's speed going down it. A steeper ramp will generally result in a faster descent due to the increased gravitational pull. Conversely, a lower ramp will lead to a slower speed as there is less gravitational force acting on the car.
A car is traveling south at a speed of 68 miles per hour and then begins traveling at a speed of 69 miles per hour but continues traveling in the same direction What has changed?
Both the speed and velocity have increased as a result of acceleration.
How does inertia cause injury to a person in a car accident?
When a car is moving at a certain speed, objects in the car, including people, move at the same speed as well. When a car accident happens, for example the car crashes into a wall, the car stops moving suddenly because of the obstacle it hits. The people, however, don't meet the obstacle and keep on moving at the same speed they had been moving before the accident. As a result, these people usually hit the front car glass or the steering wheel and get injured.
