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Velocity and Acceleration in the different coordinate system Video Lecture | Basic Physics for IIT JAM

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FAQs on Velocity and Acceleration in the different coordinate system Video Lecture - Basic Physics for IIT JAM

1. What is the difference between velocity and acceleration in a Cartesian coordinate system?
Ans. Velocity in a Cartesian coordinate system refers to the rate of change of an object's position with respect to time, and it is a vector quantity that includes both magnitude and direction. On the other hand, acceleration in a Cartesian coordinate system refers to the rate of change of an object's velocity with respect to time, and it is also a vector quantity. While velocity indicates how fast an object is moving and in which direction, acceleration indicates how quickly the velocity of an object is changing.
2. How are velocity and acceleration defined in a polar coordinate system?
Ans. In a polar coordinate system, velocity is defined in terms of two components: radial velocity and tangential velocity. Radial velocity refers to the rate of change of an object's distance from a reference point, while tangential velocity refers to the rate of change of the angle between the object's position vector and a reference direction. Similarly, acceleration in a polar coordinate system is defined in terms of radial acceleration and tangential acceleration. Radial acceleration refers to the rate of change of an object's radial velocity, while tangential acceleration refers to the rate of change of the angle between the object's velocity vector and a reference direction.
3. How can velocity and acceleration be calculated in a Cartesian coordinate system?
Ans. In a Cartesian coordinate system, velocity can be calculated by taking the derivative of an object's position function with respect to time. Mathematically, velocity (v) is equal to the derivative of position (x) with respect to time (t), written as v = dx/dt. Similarly, acceleration can be calculated by taking the derivative of an object's velocity function with respect to time. Mathematically, acceleration (a) is equal to the derivative of velocity (v) with respect to time (t), written as a = dv/dt.
4. Can velocity and acceleration be negative in a polar coordinate system?
Ans. Yes, velocity and acceleration can be negative in a polar coordinate system. In this system, negative velocity indicates that an object is moving in the opposite direction of the reference direction, while positive velocity indicates that it is moving in the same direction. Similarly, negative acceleration indicates that an object's velocity is decreasing, while positive acceleration indicates that it is increasing.
5. How does the motion of an object in a polar coordinate system differ from that in a Cartesian coordinate system?
Ans. The motion of an object in a polar coordinate system differs from that in a Cartesian coordinate system due to the different variables used to describe the motion. In a Cartesian coordinate system, position, velocity, and acceleration are described using x, y, and z coordinates. On the other hand, in a polar coordinate system, position is described using a radial distance and an angle, while velocity and acceleration are described using radial and tangential components. This difference in variables leads to different equations and calculations for velocity and acceleration in the two coordinate systems.
210 videos|156 docs|94 tests
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