Home
Class 12
PHYSICS
A particle is constrained to move in a c...

A particle is constrained to move in a circle with a 10 -meter radius. At one instant, the particle's speed is 10 m/s and is increasing at a rate of `10 m//s^(2)`. The angle between the particle's velocity and acceleration vectors is

A

`0^(@)`

B

`30^(@)`

C

`45^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
3
`(v^(2))/R=10`
`a_(1)=0`
angle is `45^(@)`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART (A)|32 Videos

  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART (B)|3 Videos

  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART- C|4 Videos

  • SEMICONDUCTORS

    BANSAL|Exercise CBSE Question|32 Videos

Similar Questions

Explore conceptually related problems

A pariticle is moving in a circle of radius 12m . At an instant its speed is 6m//s and the speed is increasing at the rate 4m//s^(2) . Find the acceleration of the particle.

A particle is moving on a circular path of 10 m radius. At any instant of time, its speed is 5ms^(-1) and the speed is increasing at a rate of 2ms^(-2) . At this instant, the magnitude of the net acceleration will be

A particle is travelling in a circular path of radius 4m. At a certain instant the particle is moving at 20m/s and its acceleration is at an angle of 37^(@) from the direction to the centre of the circle as seen from the particle (i) At what rate is the speed of the particle increasing? (ii) What is the magnitude of the acceleration?

A car is moving with speed 30m/s on a circular path of radius 500m at a given instant.Its speed is increasing at rate of 2.4m/s^(2) .Angle between acceleration and velocity at the given instant is

A particle is moving on a circular path of radius 1 m with 2 m/s. If speed starts increasing at a rate of 2m//s^(2) , then acceleration of particle is

A particle is moving along a circle of radius 1 m at a speed of 2 m/s .If the speed is incresed at the rate of 3 m//s^(2) then the resultant acceleration is

Path of a particle moving in x-y plane is y=3x+4 . At some instant suppose x - component of velocity is 1m//s and it is increasing at a constant rate of 1m//s^(2) . Then at this instant.

A particle is moving in a circle of radius 20 cm has a linear speed of 10 m//s at a certain instant and linear speed is increases at the rate of 2m//s^(2) . What is the rate at which its acceleration in U.C.M. is increasing at that instant?

A vehicle is moving at a speed of 30 m/s on a circular road of radius 450 m. Its speed is increasing at a rate of 2 m/s^2 . The acceleration of particle at this instant is

BANSAL-TEST PAPERS-PHYSICS
  1. The coefficient of static friction between a small coin and the surfac...

    Text Solution

    |

  2. Find the coordinates of centre of mass of a uniform semicircular close...

    Text Solution

    |

  3. A particle is constrained to move in a circle with a 10 -meter radius....

    Text Solution

    |

  4. Two ice-skaters of mass 120 kg and 200 kg are initially hugging on a f...

    Text Solution

    |

  5. A skier plane to ski a smooth fixed hemisphere of radius R . He starts...

    Text Solution

    |

  6. An artillery shell is fired so as to land in one piece at x=1000m. Ins...

    Text Solution

    |

  7. In the figure shown the spring constant is K the mass of the upper dis...

    Text Solution

    |

  8. A simple pendulum swings with angular amplitude theta. The tension in ...

    Text Solution

    |

  9. Two particles of equal mass 'm' are projected from the ground with spe...

    Text Solution

    |

  10. Different location of a cyclist moving with constant speed on an road ...

    Text Solution

    |

  11. Two masses of 1 gm and 4 gm are moving with equal kinetic energies. Th...

    Text Solution

    |

  12. A thin uniform steel chain is 10 meters long with a mass density of 2 ...

    Text Solution

    |

  13. A man of 80 kg attempts to jump from the small boat of mass 40 kg on t...

    Text Solution

    |

  14. On a disc fixed in a vertical plane, we have a string with its one end...

    Text Solution

    |

  15. In a cricket match, a bowler piecks up a ball (0.5 kg ) from ground. H...

    Text Solution

    |

  16. The diagram below is a snapshote of three cars all moving couterclockw...

    Text Solution

    |

  17. The diagram below is a snapshote of three cars all moving couterclockw...

    Text Solution

    |

  18. The diagram below is a snapshote of three cars all moving couterclockw...

    Text Solution

    |

  19. An elevator is rising at constant speed. Select the correct statements...

    Text Solution

    |

  20. The potential energy of a particle of mass 5 kg moving in xy-plane is ...

    Text Solution

    |