Home
Class 11
PHYSICS
Can a particle accelerate if its speed i...

Can a particle accelerate if its speed is constant ? Can it accelerate if its velocity is constant ? Explain.

Text Solution

Verified by Experts

Yes. Acceleration is the change of velocity in unit time. Even if the speed is constant, the velocity can change due to change in direction e.g., Uniform circular motion.
Promotional Banner

Topper's Solved these Questions

  • DYNAMICS

    ICSE|Exercise SHORT ANSWER QUESTIONS|93 Videos

  • DYNAMICS

    ICSE|Exercise VERY SHORT ANSWER QUESTIONS|60 Videos

  • DYNAMICS

    ICSE|Exercise ADDITIONAL SOLVED PROBLEMS|138 Videos

  • DIMENSIONS

    ICSE|Exercise SELECTED PROBLEMS (FROM CONVERSIONS OF ONE SYSTEMS OF UNITS INTO ANOTHER)|9 Videos

  • FRICTION

    ICSE|Exercise Selected problems|30 Videos

Similar Questions

Explore conceptually related problems

Can an object accelerate If its velocity is constant?

Can an object accelerate if is speed is constant?

Can a system be heated and its temperature ramains constant ?

A particle is moving on a circular path with constant speed, then its acceleration will be constant in

Graphs are very useful to represent a physical situation. Various quantities can be easily represented on graphs and other quantites can be determined from the graph. For example the slope of velocity-time graph represents instantaneous acceleration. For a motion with constant acceleration slope of velocity-time graph is constant. If acceleration is changing with time, slope with change and thus velocity-time graph will be a non-linear curve. Further the area of velocity-time graph gives displacement. The velocity-time graph for two objects P and Q are shown. The ratio of their respective acceleration is

Graphs are very useful to represent a physical situation. Various quantities can be easily represented on graphs and other quantites can be determined from the graph. For example the slope of velocity-time graph represents instantaneous acceleration. For a motion with constant acceleration slope of velocity-time graph is constant. If acceleration is changing with time, slope will change and thus velocity-time graph will be a non-linear curve. Further the area of velocity-time graph gives displacement. For the given velocity-time graph the possibly correct acceleration-time relationship is

A particle starts from rest and moves with constant acceleration. Then velocity displacement curve is:

A particle moves along a path y = ax^2 (where a is constant) in such a way that x-component of its velocity (u_x) remains constant. The acceleration of the particle is

Assertion: A particle is rorating in a circle with constant speed as shown. Between point A and B , ratio of average acceleration and average velocity is angular velocity of particle about point O . Reason: Since speed is constant, angular velocity is also constant.

Average velocity of a particle moving in a straight line, with constant acceleration a and initial velocity u in first t seconds is.

ICSE-DYNAMICS-CONCEPTUAL SHORT ANSWER QUESTIONS WITH ANSWERS
  1. Can a particle accelerate if its speed is constant ? Can it accelerat...

    Text Solution

    |

  2. Give examples where a. the velocity of a particle is zero but its acce...

    Text Solution

    |

  3. It is possible that the velocity of a body changes and its acceleratio...

    Text Solution

    |

  4. In the unit of acceleration why does the unit of time occur twice?

    Text Solution

    |

  5. Speedometer of a car measures

    Text Solution

    |

  6. When will a cyclist appear to be stationary w.r.t another moving cycli...

    Text Solution

    |

  7. Fig. shows the velocity time graph of a particle. Does it represent on...

    Text Solution

    |

  8. Suggest a suitable physical situation for the following velocity-time ...

    Text Solution

    |

  9. The distance x covered by a body is directly proportional to the squar...

    Text Solution

    |

  10. Is it possible to measure velocity of a body by measuring only its tim...

    Text Solution

    |

  11. For a body thrown vertically upwards, if the air resistance is taken i...

    Text Solution

    |

  12. Can a body moving in two dimensional plane has a acceleration in only ...

    Text Solution

    |

  13. What is the direction of motion of a projectile at the highest point ...

    Text Solution

    |

  14. If the greatest height reached by a projectile is 3/4th the horizonta...

    Text Solution

    |

  15. If a person can throw a stone to the maximum height of h metre vertica...

    Text Solution

    |

  16. A stone is dropped from the same height when another stone is thrown h...

    Text Solution

    |

  17. What is the angle preferred by anthletes in throws ?

    Text Solution

    |

  18. From a flying aeroplane a body should be dropped in advance to hit a t...

    Text Solution

    |

  19. A body is projected horizontally from the top of a building. Draw the ...

    Text Solution

    |

  20. Explain how the vertical and horizontal component of the velocity of p...

    Text Solution

    |