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Q: A bus which speed is 20 ms starts braking at a ratio of 3ms each second. Find the distance is travels before stopping.?
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What is the link between the braking distance and the thinking distance of stopping a car?

A distracted driver will have a greater reaction time than a non-distracted driver. A distraction to a driver will increase the drivers' reaction time and reduces the ability to respond to an emergency situation. The driver takes longer to react and more time passes between seeing the hazard and starting braking, so the car travels a greater distance before it comes to a stop. Two important factors to take into account for calculating stopping distances are reaction time and breaking distance. Reaction time For average drivers it takes 1.5 seconds to react to an emergency situation. For a distracted driver it may take as long as 3 seconds. A focused driver driving at 60km/hr will travel approximately 25m before they react, and a distracted driver driving at 60km/hr will travel approximately 33m before they react. Braking distance The breaking distance of a car depends on a number of variables. The slope of the roadway; a car will stop more quickly if it is traveling uphill because gravity will help slow the vehicle. The frictional resistance between the road and the tyres of the car is also important. A car with new tyres on a dry road will be less likely to skid and will stop more quickly than one with worn tyres on a wet road. If the slope and frictional resistance are equal, the factor that has most influence on braking distance is the initial speed. Formula used for calculating braking distance: d = V /(2g(f + G)) Where: d is the Braking Distance (m) g is the Acceleration due to gravity (9.8m/s^2) G is the Roadway grade V is the Initial vehicle speed (m/s) f is the Coefficient of friction between the tires and the roadway (u) A more simple formula used to calculate braking distance can be derived from a general equation of physics. Ignoring friction, and the roadway grade v = u - 2ad where: v is the final velocity (m/s) u is the initial velocity (m/s) a is the acceleration (m/s^2) d is the distance traveled during deceleration(m) Since we know that v will be zero when the car has stopped, the equation can be re-written as d = u/2a The total distance it takes for the car to come to a stop can be found by adding the reaction distance to the braking distance.


How would the distance the car travels each second change if it were slowing down?

In that case, each second the distance travelled will be less than the second before that.


What is most likely to affect the distance sound travels before it can no longer be heard?

That would be the hearing sensitivity of the person trying to hear the sound.


When a Cannon fires at a great distance from you why do you see the flash before you hear the sound?

For the same reason that you see lightening before you hear the thundering sound it makes. Light travels faster than sound through the air.


Why can you see a balloon pop before you hear it pop?

Because when the event happens, the light from it covers the distance to your eyes roughly 879 thousand times faster than the sound from it travels to your ears.

Related questions

What does stopping distance mean for road safety?

The stopping distance is the distance between the driver and the traffic lights which is required to come to a complete stop. There are many factors which are involved in the stopping distance of the car, such as: Weather, Braking systems and Tyre Threading. There are many more, but these are the main ones. If a driver wants to come to a complete stop before driving over the traffic line or causing an accident he/she needs to be on high alert and apply the brakes at a good distance at the right time.


At 80 kmp What is the shortest total distance a car travels before stopping on dry road?

Approximately 50 metres. There are other variable to take into account. For instance; The type of surface The tyres The brakes The weight of the car and contents. All these will alter the distance significantly.


Why would a car jump forward while braking in first gear before stopping completely?

because the car is a woman and woman peas are green.. pinaple man


What is ground roll?

The distance the aircraft travels on the ground before lifting off, or the same when landing.


What is the link between the braking distance and the thinking distance of stopping a car?

A distracted driver will have a greater reaction time than a non-distracted driver. A distraction to a driver will increase the drivers' reaction time and reduces the ability to respond to an emergency situation. The driver takes longer to react and more time passes between seeing the hazard and starting braking, so the car travels a greater distance before it comes to a stop. Two important factors to take into account for calculating stopping distances are reaction time and breaking distance. Reaction time For average drivers it takes 1.5 seconds to react to an emergency situation. For a distracted driver it may take as long as 3 seconds. A focused driver driving at 60km/hr will travel approximately 25m before they react, and a distracted driver driving at 60km/hr will travel approximately 33m before they react. Braking distance The breaking distance of a car depends on a number of variables. The slope of the roadway; a car will stop more quickly if it is traveling uphill because gravity will help slow the vehicle. The frictional resistance between the road and the tyres of the car is also important. A car with new tyres on a dry road will be less likely to skid and will stop more quickly than one with worn tyres on a wet road. If the slope and frictional resistance are equal, the factor that has most influence on braking distance is the initial speed. Formula used for calculating braking distance: d = V /(2g(f + G)) Where: d is the Braking Distance (m) g is the Acceleration due to gravity (9.8m/s^2) G is the Roadway grade V is the Initial vehicle speed (m/s) f is the Coefficient of friction between the tires and the roadway (u) A more simple formula used to calculate braking distance can be derived from a general equation of physics. Ignoring friction, and the roadway grade v = u - 2ad where: v is the final velocity (m/s) u is the initial velocity (m/s) a is the acceleration (m/s^2) d is the distance traveled during deceleration(m) Since we know that v will be zero when the car has stopped, the equation can be re-written as d = u/2a The total distance it takes for the car to come to a stop can be found by adding the reaction distance to the braking distance.


1998 gmc sierra 4x4 and am having a hard time stopping it you replaced the calipers and pads and bled the lines you still have very little brake and the pedal travels a long distance before slo?

Could be the master cylinder is NG. Be sure to bench bleed the new master properly before you install it.


How would the distance the car travels each second change if it were slowing down?

In that case, each second the distance travelled will be less than the second before that.


How far can an ant go before stopping?

An ant can go a mile before stopping.


What happens when water gets in your brakes?

Not much. it increases stopping distance slightly while discs are wet, but they dry out pretty fast. Just tap the pedal a few times when stopping on a rainy day before you hold.


What will be different for the ball thrown on the moon compared to a ball thrown the same way on earth?

the distance it travels before falling to the ground


What is stroke length of a pump?

The stroke length of a pump is the distance it travels up before it travels down. The distance traveling up takes in air or water depending on the type of pump. The down pressure expels the air or water.


Determine the stopping distance by these factors?

The two major factors are; friction between tires and road; friction between brake pads and rotors. Wind speed plays a small role that is usually much less of an effect than the aforementioned.