Home
Class 11
PHYSICS
Fig. 2 (NCT).9 show the x-t plot of a p...

Fig. 2 (NCT).9 show the ` x-t` plot of a particle in one dimensional motion. Three different equal intervals of time are shown. In which interval the average speed is greatest and in which it is the least ? Give th sign of average speed for each interval.
.

Text Solution

Verified by Experts

As Average speed in a given interval of time is equal to the slope of x-t graph. The slope is greatest in interval 3, therefore, average speed is greatest in interval 3 and least in interval 2, because slope of x-t graph is least there.
Average velocity is positive in interval 1 and 2 because slope of x-t graph is positive there and negative in interval 3 because of negatibe slope there.
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    MODERN PUBLICATION|Exercise NCERT (ADDITIONAL EXERCISE)|6 Videos

  • MOTION IN A STRAIGHT LINE

    MODERN PUBLICATION|Exercise NCERT (VERY SHORT ANSWER TYPE QUESTION)|5 Videos

  • MOTION IN A STRAIGHT LINE

    MODERN PUBLICATION|Exercise TOUGH & TRICKY ( PROBLEMS)|10 Videos

  • MOTION IN A PLANE

    MODERN PUBLICATION|Exercise Chapter Practice Test|15 Videos

  • OSCILLATIONS

    MODERN PUBLICATION|Exercise Practice Test (For Board Examination)|12 Videos

Similar Questions

Explore conceptually related problems

Fig. 2 (NCT). 10 . Give a speed-tiem graph of a particle in one dimenstional motion. Three different equal intervals of time are shwon. In which interval is the average acceleration graeatest in magnitude ? In which interval is the average speed greatest ? Choosing the positive direction as the constant direction of motion, give the signs of u and a in the three intervals. What are the acclerations at teh points A, B , C and D ? .

Find average speed in time interval t= 2 to t=10s

Figure gives the x-t plot of a particle is one dimensional motion. Give the signs of position, velocity and acceleration of the particle at t = 0.3s

Fig 2 (NCT).8 gives the x-t plot of a particle executing one dimensional simle harmonic motion. Give the signs of position, velocity and acceleration variables of the particles at t= 0.3 s , 1.2 s, - 1. 2 s ,

Figure shows the x-t plot of a particle moving along a straight line. Let v_1 and v_2 , be average speeds in time intervals 1 and 2 respectively. Then

s-t graph of a particle in motion is shown in Fig. Calculate Average speed

Figure shows the velocity of a particle moving on x-axis. Which of the following statement is correct for the interval shown in graph?

The velocity-time plot is shown in figure. Find the average speed in time interval t = 0 to t = 40 s during the period.

Assertion: The average velocity of a particle is zero in a time interval. It is possible that the instantaneous acceleration is never zero in the interval. Reason: The magnitude of average velocity in an interval is equal to its average speed in that interval.

If the object is moving with uniform velocity in a given interval of time, then the average speed and instantaneous velocity are equal, why?

MODERN PUBLICATION-MOTION IN A STRAIGHT LINE -NCERT (TEXTBOOK EXERCISES )
  1. A woman starts from her home at 9.00 a. m., walks with a speed of 5 km...

    Text Solution

    |

  2. A drunkard walking in a narrow lane takes 5 steps forward and 3 steps ...

    Text Solution

    |

  3. A jet airplance travelling at the speed of 500 km ^(-1) ejects its pr...

    Text Solution

    |

  4. A car moving aling a straight highway with speed of 126 km h^(-1) is ...

    Text Solution

    |

  5. Two trains A and B of length 400 m each are moving on two parallel tra...

    Text Solution

    |

  6. On a two - lane road, car A is travelling with a speed of 36 kmph. Two...

    Text Solution

    |

  7. Two towns A and B are connected by a regular bus service with a bus le...

    Text Solution

    |

  8. A player throwsa a ball upwards with an initial speed of 29.4 ms^(-1)...

    Text Solution

    |

  9. Read each staremnt below carefully and state with reasons and expample...

    Text Solution

    |

  10. A ball is dropped from a height of a height of 90 m on a floor. At eac...

    Text Solution

    |

  11. Explain clearly, with ezamples, the difference between : (a) magnitu...

    Text Solution

    |

  12. A man walks on a straight road from his home to a market 2.5 km away w...

    Text Solution

    |

  13. In abave questions 13 and 14, we have carefully distinguished betwee...

    Text Solution

    |

  14. Look at the graphs (a) to (d) carefully and state, with reasons, which...

    Text Solution

    |

  15. Fig. 2 (NCT). 6 shows x-t plot of one dismensional motion a particle....

    Text Solution

    |

  16. A police van moving on a highway with a speed of 30 km h^(-1) Fires a ...

    Text Solution

    |

  17. Suggest a suitable physical situation for each of the following graphs...

    Text Solution

    |

  18. Fig 2 (NCT).8 gives the x-t plot of a particle executing one dimensio...

    Text Solution

    |

  19. Fig. 2 (NCT).9 show the x-t plot of a particle in one dimensional mot...

    Text Solution

    |

  20. चित्र में किसी नियत (स्थिर) दिशा के अनुदिश चल रहे कण का चाल-समय ग्राफ ...

    Text Solution

    |