Home
Class 11
PHYSICS
A simple pendulum is vibrating with an a...

A simple pendulum is vibrating with an angular amplitude of `90^(@)` as shown in figure. For what value of `alpha` (angle between string and vertical) during its motion, the total acceleration is directed horizontally ?

A

`tan^(-1)((1)/(2))`

B

`tan^(-1)((1)/(sqrt(2)))`

C

`cos^(-1)(1//sqrt(3))`

D

`sin^(-2)(1//sqrt(3))`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CIRCULAR MOTION

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

  • CIRCULAR MOTION

    DC PANDEY ENGLISH|Exercise Comprehension|13 Videos

  • CIRCULAR MOTION

    DC PANDEY ENGLISH|Exercise JEE Main|23 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|21 Videos

  • COMMUNICATION SYSTEM

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

Similar Questions

Explore conceptually related problems

A simple pendulum is oscillating with angular displacement 90^(@) For what angle with vertical the acceleration of bob direction horizontal?

A simple pendulum with a bob of mass m swings with an angular amplitude of 40^@ . When its angular displacement is 20^@ , the tension in the string is greater than mg cos 20^@

A simple pendulum with a bob of mass m swings with an angular amplitude of 40^@ . When its angular displacement is 20^@ , the tension in the string is greater than mg cos 20^@ true false

A simple pendulum swings with angular amplitude theta . The tension in the string when it is vertical is twice the tension in its extreme position. Then, cos theta is equal to

A simple pendulum has a bob of mass m and swings with an angular amplitude phi . The tension in thread is T . At a certain time the string makes an angle theta with the vertical (theta le phi)

A bob is hanging over a pulley inside a car through a string. The second end of the string is in the hands of a person standing in the car. The car is moving with constant acceleration a directed horizontally as shown in fig. The other end of the string is pulled with constant acceleration a vertically. The tension in the string is equal to

A simple pendulum 4 m long swings with an amplitude of 0.2 m. What is its acceleration at the ends of its path? (g = 10m//s^(2) )

A simple pendulum of length 40 cm oscillates with an angular amplitude of 0.04 rad. Find a. the time period b. the linear amplitude of the bob, c. The speed of the bob when the string makes 0.02 rad with the vertical and d. the angular acceleration when the bob is in momentarily rest. Take g=10 ms^-2 .

A particle is projected in air at some angle to the horizontal, moves along parabola as shown in figure where x and y indicate horizontal and vertical directions, respectively . Shown in the diagram, direction of velocity and acceleration at points A, B and C.

A pendulum bob is swinging in a vertical plane such that its angular amplitude is less than 90^(@) . At its highest point, the string is cut. Which trajectory is possible for the bob afterwards ?

DC PANDEY ENGLISH-CIRCULAR MOTION-JEE Advanced
  1. A particle starts traveling on a circle with constant tangential accel...

    Text Solution

    |

  2. A block of mass m is placed inside a smooth hollow cylinder of radius ...

    Text Solution

    |

  3. A simple pendulum is vibrating with an angular amplitude of 90^(@) as ...

    Text Solution

    |

  4. A ball of mass m is attached to one end of a light rod of length l, th...

    Text Solution

    |

  5. A particle is given an intial speed u inside a smooth spherical shell ...

    Text Solution

    |

  6. A bob is suspended from a crane by a cable of length l=5m . The crane ...

    Text Solution

    |

  7. A smooth sphere of radius R is made to translate line with a constant ...

    Text Solution

    |

  8. Two bodies of masses m and 4 m are attached with string as shown in th...

    Text Solution

    |

  9. Two beads A and B of equal mass m are connected by a light inextensibe...

    Text Solution

    |

  10. A small block of mass m is released from rest from point A inside a sm...

    Text Solution

    |

  11. An automobile enters a turn whose radius is R. The road is banked at a...

    Text Solution

    |

  12. A ball of mass 1 kg is released from position A inside a wedge with a ...

    Text Solution

    |

  13. A partical of mass m oscillates along the horizontal diameter AB insi...

    Text Solution

    |

  14. A bead of mass m is attached to one end of a spring of natural length ...

    Text Solution

    |

  15. A particle is moving in a circular path. The acceleration and momentum...

    Text Solution

    |

  16. A ball of mass 'm' is rotating in a circle of radius 'r' with speed v...

    Text Solution

    |

  17. A block of mass m=1kg has a speed v = 4 m//s at theta = 60^(@) on a ci...

    Text Solution

    |

  18. Two blocks of masses 1 kg and 2 kg are joined by a massless inextensib...

    Text Solution

    |

  19. Two different blocks of equal mass m are released from two positions a...

    Text Solution

    |

  20. Choose the correct option: A small collar of mass m is given an ini...

    Text Solution

    |