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Subway train starting from rest leaves a station with a constant acceleration At the end of 6.47 s it is moving at 17.2102 m s What is the train s displacement in the first 4.76839 s of motion?
Vikaua
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How does gravity affect the space station?
The International space station is constantly falling towards Earth under the pull of Earth's gravity (Just like any other object - gravity does not stop when you reach space!). However the Station is moving very fast horizontally and, as the Earth is a sphere, this means that as it falls its path takes it round the Earth in a circle - it is in "orbit". This means that if you are in the space station you are falling as fast as gravity can pull you and therefore you do not feel the pull of gravity, making you weightless.
What is the acceleration of an object moving in circular path at constant velocity?
Centrepital Acceleration.Normal acceleration known as centripetal acceleration in case of circular motion with uniform speedAn object in circular motion experiences continuous change in its direction ofmotion, and may or may not experience changes in its speed. Either changeconstitutes acceleration.The force that keeps an object in circular motion is often directed towardthe center of the circle. It's then known as "centripetal" force, and producescentripetal acceleration.
Is it possible that acceleration at an instant does not depends upon its velocity at that instant?
Acceleration never depends on the instantaneous velocity.Acceleration is the rate at which velocity is changing, and the direction of the change.A car leaving a STOP sign at a neighborhood intersection, and the Space Shuttle in theprocess of a delicate orbital maneuver to link up with the International Space Station,could very well have the same acceleration.
Which gives you a frame of reference for your speed when riding in a train?
The passing landscape gives you a frame of reference.
Why would orbiting space stations that simulate gravity likely be large structures?
Artifical gravity is created by the outward acceleration (centrifugal force) as an object rotates around an axis of rotation. The magnitude of this outward acceleration is given by the centripetal acceleration, which is the opposing inward acceleration keeping the rotating object in circular orbit around the rotating object. In space, this would be done by rotating a space station until the centripetal acceleration is equal to the acceleration of gravity on Earth. Centripetal acceleration is given by the equation: Centripetal Acceleration = Velocity2/ Radius. As you can see, the magnitude of the centripetal acceleration is largely dependent upon the object's distance (distance) from the axis of rotation. Thus, in a space station that is fairly small (has a small radius), a standing astronaut will feel a different centripetal acceleration in his head than in his feet. Take the example of an astronaut standing up in a circular rotating space station with radius 5m and rotating at a speed of 7 m/s. At the astronauts feet (about 5 meters from the axis of rotation), the astronaut's centripetal acceleration will be given by the following equation. CA = 72/5 --> CA = 9.8 m/s2. This is roughly equal to Earth's gravitation acceleration. Now, lets see the magnitude of centripetal acceleration at the astronauts head. If the astronaut is 6 feet tall (about 1.83 meters), then the radius of rotation at the astronauts head is only 3.17 meters (5 meters - 1.83 meters). The speed of rotation will also be slower because the astronauts head, being closer to the axis of rotation, will have to complete a relatively smaller circle to complete one rotation in the same amount of time as the feet. After calculations, the resulting speed of rotation is 4.289 m/s rather than 7m/s. Thus, the centripetal acceleration at the astronauts head is given by the following equation: CA = 4.2892/3.17 --> CA=5.803 m/s2. Thus, we see a serious inconsistency between the centripetal acceleration at the feet of the astronaut and at the head of the astronaut (9.8 m/s2 at the feet and 5.803 m/s2 at the head). This difference would make the astronaut feel extremely uncomfortable and nauseated, rendering them unable to function at the high level needed for space. Instead, lets look at a large space station design. Take, for example, the Stanford Torus, a design that consists of a large 1.8 km in diameter rotating ring. At this large size, the space station would only need to rotate at one rotation per minute and at a rotating speed of 94.24 m/s in order to simulate Earth's gravitational acceleration. with a radius of 900m, the 1.83 meter difference between a astronaut's feet and head would be negligible and thus an astronaut would feel just as if he or she were on Earth. This is why space stations that intend to simulate gravity should be built large enough to minimize the significance of the difference between the radius of rotation of one's feet and one's head.
When the speed of rotation of a space station were doubled the centripetal acceleration o the astronaut would be?
In the simplest case, supposing the orbit of the space station to be a perfect circle, the centripetal acceleration would be quadrupled (F=mω2r).
What is the velocitydistancespeed and displacement about this problem a car is moving to the north along to a straight highway and stops after 1 hour for refueling at a gasoline station 80 km?
Velocity: average of 80 km per hour due North, 0 when at station. Distance: 80 km. Speed : average of 80 km per hour, 0 when at station. Displacement: 80 km.
Starting with s and ending with n?
One word that starts with "s" and ends with "n" is "salmon."
How does gravity affect the space station?
The International space station is constantly falling towards Earth under the pull of Earth's gravity (Just like any other object - gravity does not stop when you reach space!). However the Station is moving very fast horizontally and, as the Earth is a sphere, this means that as it falls its path takes it round the Earth in a circle - it is in "orbit". This means that if you are in the space station you are falling as fast as gravity can pull you and therefore you do not feel the pull of gravity, making you weightless.
Why you use delta star combination in transmission line from generating station to feeder station?
The starting current is about 30 % of the direct-on-line starting device. The starting torque is about 25 % of the direct-on-line starting torque. The stress on an application is reduced compared to the direct-on-line starting method.
How do you adjust crown wheel and pinion play to reduce hum on acceleration of Toyota Corolla station wagon?
you idiot you cant
What is the acceleration of an object moving in circular path at constant velocity?
Centrepital Acceleration.Normal acceleration known as centripetal acceleration in case of circular motion with uniform speedAn object in circular motion experiences continuous change in its direction ofmotion, and may or may not experience changes in its speed. Either changeconstitutes acceleration.The force that keeps an object in circular motion is often directed towardthe center of the circle. It's then known as "centripetal" force, and producescentripetal acceleration.
One word for an important part of a power station starting with T?
Turbine
Starting in the 1890s the government began using what as an immigration station?
Ellis Island
Can you get the train to Barcelona?
Barcelona has a train station, so it is possible to get there by train. However. where you are starting from (which you have not specified) may not have a station or indeed be connected to a rail network.
How long does it take to go to Casey station in Antarctica by aircraft?
Your answer depends on your starting point.
Is it possible that acceleration at an instant does not depends upon its velocity at that instant?
Acceleration never depends on the instantaneous velocity.Acceleration is the rate at which velocity is changing, and the direction of the change.A car leaving a STOP sign at a neighborhood intersection, and the Space Shuttle in theprocess of a delicate orbital maneuver to link up with the International Space Station,could very well have the same acceleration.
