Home
Class 12
PHYSICS
If magnitude of average speed and averag...

If magnitude of average speed and average velocity over a time interval are same, then

A

Particle must move with zero acceleration

B

Particle must move with uniform acceleration

C

Particle must be at rest

D

Particle must move in a straight line without turning back

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - C)|36 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - D)|15 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION - A)|58 Videos

  • MOTION IN A PLANE

    AAKASH INSTITUTE ENGLISH|Exercise Assignement section -J (Aakash Challengers Questions)|7 Videos

  • MOTION IN STRAIGHT LINE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - J)|2 Videos

Similar Questions

Explore conceptually related problems

Distinguish between average speed and average velocity.

Assertion : The average speed of an object is greater than or equal to the magnitude of the average velocity over a given time interval. Reason : The two are equal only if the path length is equal to the magnitude of displacement.

A man walks on a straight road from his home to market 2.5 km away with speed of 5 km/h Finding the market closed, he instantly turns and walks back with a speed of 7.5 km/h. What is the magnitude of average velocity and average speed of the man over the interval of time (i) 0 to 30 min (ii) 0 to 50 min (iii) 0 to 40 min ?

A particle is moving in a circle of radius 4 cm with constant speed of 1 cm//s. Find (a) time period of the particle. (b) average speed, average velocity and average acceleration in a time interval from t=0 to t = T/4. Here, T is the time period of the particle. Give only their magnitudes.

Assertion In circular motion, average speed and average velocity are never equal. Reason In any curvilinear path, these two are never equal.

Assertion: The magnitude of average velocity of the object over an interval of time is either smaller than or equal to the average speed of the object over the same interval. Reason: Path length (distance) is either equal or greater than the magnitude of displacement.

Can the instantaneous velocity of an object during a time interval ever be greater in magnitude than average celocity over the entire interval ? Can it be less?

Read each statement below carefully and state with reasons, with it is true or false : (a) The magnitude of vector is always a scalar. (b) Each component of a vector is always a scalar. (c) The total path length is always equal to the magnitude of the displacement vector of a particle. (d) The average speed of a particle (defined as total path length divided by the time taken to cover the path) is greater or equal to the magnitude of average velocity of the particle over the same interval of time. (e) three vectors not lying in a plane can never add up to give a null vector.

Under what condition is the magnitude of the average velocity of a particle moving in onbe dimension smaller than the average speed over same time interval?

AAKASH INSTITUTE ENGLISH-MOTION IN A STRAIGHT LINE-ASSIGNMENT (SECTION - B)
  1. An object thrown verticallly up from the ground passes the height 5 m ...

    Text Solution

    |

  2. A particle is thrown vertically upwards. If its velocity is half of th...

    Text Solution

    |

  3. A particle starts with initial speed u and retardation a to come to re...

    Text Solution

    |

  4. Which of the following speed - time (v - t) graphs is physically not p...

    Text Solution

    |

  5. A particle travels half the distance of a straight journey with a spee...

    Text Solution

    |

  6. The acceleration - time graph for a particle moving along x - axis is ...

    Text Solution

    |

  7. A body falling a vertically up with initial velocity 52 m/s from the g...

    Text Solution

    |

  8. A body falling from a vertical height of 10 m pierces through a distan...

    Text Solution

    |

  9. When a particle is thrown vertically upwards, its velocity at one thir...

    Text Solution

    |

  10. A body is dropped from a height H. The time taken to cover second half...

    Text Solution

    |

  11. A stone dropped form the top of a tower is found to travel (5//9) of t...

    Text Solution

    |

  12. The velocity of a body depends on time according to the equation v=(t^...

    Text Solution

    |

  13. The displacement (x)-time (t) graph of a particle is shown in figure. ...

    Text Solution

    |

  14. A stone thrown upward with a speed u from the top of a tower reaches t...

    Text Solution

    |

  15. If magnitude of average speed and average velocity over a time interva...

    Text Solution

    |

  16. A body is dropped from a certain height h (h is very large) and second...

    Text Solution

    |

  17. Ball A is thrown up vertically with speed 10 m/s. At the same instant ...

    Text Solution

    |

  18. A body starts from origin and moves along x - axis so that its positio...

    Text Solution

    |

  19. Position time graph of a particle moving along straight line is shown ...

    Text Solution

    |

  20. Two bodies starts moving from same point along straight line with velo...

    Text Solution

    |