Home
Class 11
PHYSICS
Starting from rest, a particle rotates i...

Starting from rest, a particle rotates in a circle of radius R  2 m with an angular acceleration  = /4 rad/s2.The magnitude of average velocity of the particle over the time it rotates quarter circle is:

A

1.5 m/s

B

2 m/s

C

1 m/s

D

1.25 m/s

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

    DC PANDEY|Exercise JEE Advanced|25 Videos

  • CIRCULAR MOTION

    DC PANDEY|Exercise More than One Option is Correct|13 Videos

  • CIRCULAR MOTION

    DC PANDEY|Exercise Subjective Questions|2 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 2 Subjective|21 Videos

  • COMMUNICATION SYSTEM

    DC PANDEY|Exercise Only One Option is Correct|27 Videos

Similar Questions

Explore conceptually related problems

If a particle rotates along a circle of radius 3 m with an angular acceleration of (pi)/(2) "rad"//s^(2) starting from rest, then its average velocity over the time it covers quarter circle is :

A disc of radius 0.1 m starts from rest with an angular acceleration of 4.4 rad//s^(2) .Then linear velocity of the point on its after 5 s is

A particle moves in a circle of radius R = 21/22 m with constant speed 1 m//s. Find, (a) magnitude of average velocity and (b) magnitude of average acceleration in 2 s.

A point traversed 3/4 th of the circle of radius R in time t. The magnitude of the average velocity of the particle in this time interval is

A particle is revolving in a circular path of radius 2 m with constant angular speed 4 rad/s. The angular acceleration of particle is

A particle is moving along a circle of radius 20cm , with a linear velocity of 2m//s. Calculate the angular velocity of the particle.

A particle starts moving at t = 0 in a circle of radius R = 2m with constant angular acceleration of a - 3 "rad/sec"^(2) . Initial angular speed of the particle is 1 rad/sec. At time t_(0) the angle between the acceleration vector and the velocity vector of the particle is 37^(@) . What is the value of t_(0) ?

A particle starts moving at t = 0 in a circle of radius R = 2m with constant angular acceleration of a - 3 "rad/sec"^(2) . Initial angular speed of the particle is 1 rad/sec. At time t_(0) the angle between the acceleration vector and the velocity vector of the particle is 37^(@) . What is the magnitude of the acceleration of the particle at t_(0) ?

DC PANDEY-CIRCULAR MOTION-JEE Main
  1. A x and y co-ordinates of a particle are x=A sin (omega t) and y = A s...

    Text Solution

    |

  2. Position vector of a particle moving in x-y plane at time t is r=a(1- ...

    Text Solution

    |

  3. Starting from rest, a particle rotates in a circle of radius R  2 m w...

    Text Solution

    |

  4. A bob hangs from a rigid support by an inextensible string of length l...

    Text Solution

    |

  5. A particle suspended from a fixed point, by a light inextensible threa...

    Text Solution

    |

  6. With what minimum speed v must a small ball should be pushed inside a ...

    Text Solution

    |

  7. The second's hand of a watch has length 6 cm. Speed of end point and m...

    Text Solution

    |

  8. A pendulum bob is swinging in a vertical plane such that its angular a...

    Text Solution

    |

  9. A hollow vertical cylinder of radius R is rotated with angular velocit...

    Text Solution

    |

  10. A smalll bob attached to a string of length l is suspended from a rigi...

    Text Solution

    |

  11. A particle of mass m attached to a string of length l is descending ci...

    Text Solution

    |

  12. A pendulum of mass 1 kg and length  = 1m is released from rest at ang...

    Text Solution

    |

  13. A ball suspended by a thread swings in a vertical plane so that its ac...

    Text Solution

    |

  14. A simple pendulum consisting of a mass M attached to a string of lengt...

    Text Solution

    |

  15. A particle moves along a circle if radius (20 //pi) m with constant ta...

    Text Solution

    |

  16. The velocity and acceleration vectors of a particle undergoing circula...

    Text Solution

    |

  17. A particle mass m begins to slide down a fixed smooth sphere from the ...

    Text Solution

    |

  18. A bus is moving in a circular horizontal track of radius 10 m with a c...

    Text Solution

    |

  19. Two identical balls 1 and 2 are tied to two strings as shown in figure...

    Text Solution

    |

  20. A particle starts moving from rest at t=0 with a tangential accelerati...

    Text Solution

    |