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Why the second hand of a clock cannot travel at constant velocities?
Wiki User
∙ 14y ago
It depends on the motor used to run the clock.
An electric motor can drive the second hand at constant velocities. A mechanical motor has a little pendulum in it. It swings back and forth once per second, and every time it swings it moves the second hand.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoExplain why the second hands of a clock cannot travel at a constant velocities
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Why does a car traveling at constant speed can accelerate while a car at constant velocity connot?
The question is inherantly flawed. A car traveling at a constant speed cannot accelerate, if it could it's speed would not be constant. "Constant speed" means that speed is not increasing or decreasing but remain consistent over time. For example, if you cover 10 feet during each second, your speed is constant. "Constant velocity" implies constant speed, but it has an additional constraint: you can't change your direction. If you travel constantly at 10 feet per second in a straight line, then your speed is constant and your velocity is constant. But if you travel constantly at 10 feet per second in a wiggly line (or a circle, or anything not straight), then your speed is constant but your velocity is NOT constant. If you travel at a constant speed but change direction, velocity is changed. Or if you travel in the same direction but change the speed, velocity is changed. Average speed is is easier: distance/time So, your question should read: Why can a car traveling at an average speed accelerate, but a car traveling at constant speed cannot? Or Why am I asking the wrong questions?
What is the property of an object that travels the same distance each second?
Such an object is said to travel at a constant speed. If it doesn't change direction, it is also said to travel at constant velocity.
Do objects travel at constant speed?
NO, all hings were not travel at constant things but some things r travel in constant speed for example solar system
When the light passes through the second medium what happens to the wave that causes the light to bend?
When light passes through a second medium with different refractive index as the first medium, its velocity will decrease or increase depending on its wavelength and the difference in refractive index of the two media. This causes the 'bending' of light as each of its components try to travel through the second medium at different velocities.
When does two objects traveling at the same speed have different velocities?
When they travel in different directions, obviously, since velocity is made up of a speed and a direction.
Why does a car traveling at constant speed can accelerate while a car at constant velocity connot?
The question is inherantly flawed. A car traveling at a constant speed cannot accelerate, if it could it's speed would not be constant. "Constant speed" means that speed is not increasing or decreasing but remain consistent over time. For example, if you cover 10 feet during each second, your speed is constant. "Constant velocity" implies constant speed, but it has an additional constraint: you can't change your direction. If you travel constantly at 10 feet per second in a straight line, then your speed is constant and your velocity is constant. But if you travel constantly at 10 feet per second in a wiggly line (or a circle, or anything not straight), then your speed is constant but your velocity is NOT constant. If you travel at a constant speed but change direction, velocity is changed. Or if you travel in the same direction but change the speed, velocity is changed. Average speed is is easier: distance/time So, your question should read: Why can a car traveling at an average speed accelerate, but a car traveling at constant speed cannot? Or Why am I asking the wrong questions?
What is the property of an object that travels the same distance each second?
Such an object is said to travel at a constant speed. If it doesn't change direction, it is also said to travel at constant velocity.
An object travels 8 m in the 1st second of travel 8 m again during the 2nd second of travel and 8 m again during the 3rd second Its acceleration is therefore?
Acceleration is zero velocity is constant at 8m every second acceleration is the gradient of velocity and the gadient of a constant = 0
How many meters per second do light waves travel in air at a constant velocity?
3
An object travels 8 m in the 1st second of travel 8m again during the 2nd second of travel and 8m again during the 3rd second its acceleration in meters per second per second is?
Speed is constant. Acceleration is zero.
How fast can an asteroid hit your earth?
About 10-70 km/second or 6.2-43.5 miles/secondFor comparison:Bullets travel slower than 2 km/second or 1.2 miles/second.Low earth orbital velocity is about 7.8 km/second or 4.8 miles/secondGeosynchronous orbital velocity is about 3 km/second or 1.9 miles/secondHigh explosive detonation wave velocities are about 5-10 km/second or 3.1-6.2 miles/secondNuclear explosive detonation wave velocities are about 300 km/second or 186.4 miles/second
How fast can light travel around the world in a second?
The speed of light in air is approximately 350 meters/second. It is not constant; it depends on pressure, temperature, and humidity.
Do objects travel at constant speed?
NO, all hings were not travel at constant things but some things r travel in constant speed for example solar system
A car moving with an initial velocity of 30 meters per second slows down at a constant rate of 3 meters per second?
1 meter/second/second in the same direction of travel
If A sailboat moves at a constant speed of 2 meters per second How far does it travel every 10 seconds?
20
What produces a standing wave?
When two waves travel in a medium with the same speed and frequency but opposite velocities.
Why do waves change speed as they travel through earths layer?
Different materials have different velocities of sound propagation.
