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What is the difference between direct proportion and indirect proportion?
Two variables are said to be in direct proportion if, when you increase one by some multiple, the other also increases by that same multiple. Alternatively, both decrease by the same proportion. Two variables are in indirect (or inverse) proportion if an increase in one of them is associated with a decrease in the other, and conversely. The proportional change in both is the same. For example, if I change the speed at which I am driving, then the distance that I can cover in a fixed amount of time will change in the same proportion. Double my speed then double the distance, quadruple speed and quadruple distance, halve the speed and halve the distance. So speed and distance are directly proportional. Now think of speed and the time taken to do a fixed distance. Double my speed and halve the time. Halve the speed then double the time. So time taken is inversely proportional to speed.
Does braking distance decrease as speed increase?
No. If it did, you'd need a 5-mile driveway at your house, but a jet fighter could land on a 2-foot runway.
What are the three formulas for the speed triangle?
Speed = Distance/TimeTime = Distance/SpeedDistance = Speed*TimeSpeed = Distance/TimeTime = Distance/SpeedDistance = Speed*TimeSpeed = Distance/TimeTime = Distance/SpeedDistance = Speed*TimeSpeed = Distance/TimeTime = Distance/SpeedDistance = Speed*Time
Describe the relationship between the variable of time distance and speed?
Time = (distance) divided by (speed) Distance = (speed) multiplied by (time) Speed = (distance) divided by (time)
How do you find out time taken?
D= Distance S= Speed T= Time Speed = Distance/Time Distance = Speed x Time Time Taken = Distance/Speed
How kinetic energy of an object changes when the speed of an abject doubles?
Assuming non-relativistic speeds: Doubling the speed will quadruple the kinetic energy.
Does Speed Affect Braking Distance Of A Vehicle?
Yes
How does mass speed of vehicle affect the braking distance?
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Why is the braking distance longer when the car is travelling at a higher speed?
Inertia.
What things can affect braking distance?
Things that affect braking distance consist of the following factors: * speed at which you're travelling * weight of the car * road conditions * braking efficiency * friction between the road surface and your tires Things that affect braking distance consist of the following factors: * speed at which you're travelling * weight of the car * road conditions * braking efficiency * friction between the road surface and your tires
Is it twice the stopping distance for a car in freezing conditions?
No - the stopping distance depends on the speed of the vehicle - it' not simply a case of 'doubling-up'.
Why factors affect your braking distance?
Hand-eye coordination, thinking distance, drunkenness, tiredness, if your on drugs, if your listening to music/being distracted. Thats just about it Also speed and road conditions affect braking distance
What effects the distance a car takes to stop?
The speed; the quality of the braking system; the mass of the car; the time it takes the driver to notice a danger. The speed is especially important; other things being equal, braking distance is proportional to the square of the distance. That means that at twice the speed, the car will move 4 times as far while it brakes.
Double your speed double stopping distance?
When your speed is doubled, your braking distance is multiplied by four.
How do you find braking distance?
First, you drive your vehicle at top speed on the road. Then, you step full brake. Next, you get out of the vehicle and take a measuring tape to measure the black trail left by your vehicle's tyres. the length you had measured is the braking distance.
What is the difference between direct proportion and indirect proportion?
Two variables are said to be in direct proportion if, when you increase one by some multiple, the other also increases by that same multiple. Alternatively, both decrease by the same proportion. Two variables are in indirect (or inverse) proportion if an increase in one of them is associated with a decrease in the other, and conversely. The proportional change in both is the same. For example, if I change the speed at which I am driving, then the distance that I can cover in a fixed amount of time will change in the same proportion. Double my speed then double the distance, quadruple speed and quadruple distance, halve the speed and halve the distance. So speed and distance are directly proportional. Now think of speed and the time taken to do a fixed distance. Double my speed and halve the time. Halve the speed then double the time. So time taken is inversely proportional to speed.
What determines the stopping distance?
Stopping distance as in braking distance: Braking distance refers to the distance a vehicle will travel from the point where the brakes are fully applied to when it comes to a complete stop. It is affected by the original speed of the vehicle, the type of brake system in use, the reaction time of the driver/rider and the cefficient of friction between the tires and the road surface.
