Average Speed and Average Velocity
The average velocity of a particle is zero but not its average speed. is it possible?
Asked Prashant
Answer:
Yes, it is possible. As you may probably know, Average speed is the ratio of distance traveled by a body to the time taken whereas average speed is the ratio of displacement to the time taken. The displacement made by a body can be zero when the body returns to its original path. abut, the distance which the total length of the path followed by the body cannot be zero.
Therefore the average velocity of a particle is zero but not its average speed. is it possible?
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Force between charged rods: A Problem from electrostatics
Two mutually perpendicular long straight conductors carrying uniformly distributed charges of linear charge densities (D1) and (D2) are positioned at a distance a from each other. What is the force between them?
Posted by Harsh
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MCQ from electrostatics
Two charges of equal magnitudes & at a distance r exert a force F on each other.if the charges are halved and a distance b/w them is doubled then new force acting on each charge?
1. F/8
2. F/4
3. 4F
4. F/16
Posted by Reghu
Members and visitors are requested to answer the question with due explanation
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What is overturning of a vehicle?
What are the conditions in which a car will overturn? How can I derive the equation for condition of overturning? (for derivation, just tips are enough)
Asked Daniel James
Answer
Read this Doc Circular motion03-04
Refer to this too
The dictionary meaning of overturning:
Tip (something) over so that it is on its side or upside down: “the crowd overturned cars”
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