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When will the relative velocity of two m...

When will the relative velocity of two moving cars be greater than their individual velocities?

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When both are moving in same directions.
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When will the relative velocity of two moving cars be zero ?

When the relative velocity of two cars v_(A) = v_(B) becomes zero ?

Explain the relative velocity and its two cases.

Distance is a scalar quantity. Displacement is a vector quqntity. The magnitude of displacement is always less than or equal to distance. For a moving body displacement can be zero but distance cannot be zero. Same concept is applicable regarding velocity and speed. Acceleration is the rate of change of velocity. If acceleration is constant, then equations of kinematics are applicable for one dimensional motion under the gravity in which air resistance is considered, then the value of acceleration depends on the density of medium. Each motion is measured with respect of frame of reference. Relative velocity may be greater // smaller to the individual velocities. A particle moves from A to B. Then the ratio of distance to displacement is :-

Distance is a scalar quantity. Displacement is a vector quqntity. The magnitude of displacement is always less than or equal to distance. For a moving body displacement can be zero but distance cannot be zero. Same concept is applicable regarding velocity and speed. Acceleration is the rate of change of velocity. If acceleration is constant, then equations of kinematics are applicable for one dimensional motion under the gravity in which air resistance is considered, then the value of acceleration depends on the density of medium. Each motion is measured with respect of frame of reference. Relative velocity may be greater // smaller to the individual velocities. A particle is moving along the path y=4x^(2) . The distance and displacement from x=1 to x=2 is (nearly) :-

Distance is a scalar quantity. Displacement is a vector quqntity. The magnitude of displacement is always less than or equal to distance. For a moving body displacement can be zero but distance cannot be zero. Same concept is applicable regarding velocity and speed. Acceleration is the rate of change of velocity. If acceleration is constant, then equations of kinematics are applicable for one dimensional motion under the gravity in which air resistance is considered, then the value of acceleration depends on the density of medium. Each motion is measured with respect of frame of reference. Relative velocity may be greater // smaller to the individual velocities. A person is going 30 m north, 20m east and then 30sqrt(2) m southwest. The net displacement will be

Assertion: When a particle moves with constant velocity its average velocity, its insttantaneous velocity and its speed are all equal in magnitude. Reason: If the average velocity of a particle moving on a straight line is zero in a time interval, then it is possible that the instantaneous velocity is never zero in the internal.

If the final velocity of an object is less than the initial velocity, then it performs accelerated motion.

A ball moving with a velocity v hits a massive wall moving towards the ball with a velocity a. An elastic impact lasts for time /_\t

A large number of particles are moving each with speed v having directions of motion randomly distributed. What is the average relative velocity between any two particles averaged over all the pairs?

KUMAR PRAKASHAN-MOTION IN A STRAIGHT LINE -SECTION-C
  1. When will the relative velocity of two moving cars be zero ?

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  2. When will the relative velocity of two moving cars be greater than the...

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  3. When will the relative velocity of two moving cars be greater than the...

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  4. What does speedometer of vehicle measure ? Instantaneous velocity or i...

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  5. Give velocity and acceleration at any point for an moving object whose...

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  6. Find the ratio of accelerations of two objects whose vto t graphs make...

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  7. A car starts uniform motion from rest, than find shapes of graphs : (i...

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  8. When an object is said to be in motion ?

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  9. How motion of any particle is described ?

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  10. What is kinematics?

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  11. In which condition two substance can be considered as a particles ?

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  12. "Different types of speed's average is called average speed". Is this ...

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  13. If direction of velocity and acceleration are in mutually opposite dir...

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  14. When an average velocity of a particle becomes its instantaneous veloc...

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  15. For the given vehicle, its stopping distance is proportional to .........

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  16. Two cars moving with speeds 40 km/hr and 80 km/hr respectively with un...

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  17. When the average acceleration of the particle becomes instantaneous ac...

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  18. Give relation between displacement and path length ?

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  19. What would be the distance covered by the particle falling freely in 1...

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  20. Is it possible for any moving object that velocity is constant but spe...

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