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प्रश्न
Define angular velocity
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उत्तर
The angular velocity is defined as rate of change of angular displacement (θ) with time (t). It is denoted by (ω)
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संबंधित प्रश्न
Define Velocity.
A body goes from A to B with a velocity of 30 ms-1 and comes back from B to A with a velocity of 20 ms-1. What is the average velocity of the body for the whole journey?
Figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.
How long is the body travelling with a uniform velocity?
A train travels from A to station B with a velocity of 100 km/h and returns from station B to station A with a velocity of 80 km/h. Its average velocity during the whole journey is ______ and its average speed is ______.
If the final velocity is less than the initial velocity the acceleration is ______.
If the velocity of the body decreases with time the acceleration is negative and the motion is called decelerated motion.
Assertion: A body can have acceleration even if its velocity is zero at a given instant of time.
Reason: A body is momentarily at rest when it reverses its direction of motion.
Give the formula for each.
- elation between initial, final velocity, acceleration, and displacement in a uniformly accelerated straight-line motion.
- Relation between initial, final velocity, acceleration & time in a uniformly accelerated straight-line motion.
- Relation between initial velocity, acceleration, displacement, and time.
Distinguish between speed and velocity
Define velocity.
