Home
Class 12
PHYSICS
Figure shows a small ball of mass m held...

Figure shows a small ball of mass m held at rest by means of two light and inextensible strings. The tensions in the inclined string at the instant shown and just after cutting the horizontal atring are respectively

A

a. `mg cos theta ,cos theta`

B

b. `mg cos theta, (mg)/(cos theta)`

C

c. `(mg)/(cos theta), mg cos theta`

D

d. `(mg)/(costheta),(mg)/(cos theta)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION -C) objective type questions (More than one options are correct)|21 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION -D) Linked Comprehension Type Question|1 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT ( SECTION -A)|50 Videos

  • KINETIC THEORY

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE (ASSIGNMENT) SECTION - D Assertion - Reason Type Questions|10 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION D)|26 Videos

Similar Questions

Explore conceptually related problems

A mass M is hung with a light inextensible string as shown in Find the tension in the horizontal part of the string .

A uniform rod of mass m and length l is suspended by means of two light inextensible strings as shown in figure. Tension in one string immediately after the other string is cut is

A small ball is suspended from a fixed point 'O' by means of a light and inextensible string of length 'l'. The ball is first taken aside such that string becomes horizontal and then released from rest. At the borrom it collides with a fixed obstacle. The co-efficient of restitution is 'e'. Find the maximum angular deflection of the string after n^(th) collision.

A thin uniform bar of mass m and length 2L is held at an angle 30^@ with the horizontal by means of two vertical inextensible strings, at each end as shown in figure. If the string at the right end breaks, leaving the bar to swing, determine the tension in the string at the left end and the angular acceleration of the bar immediately after string breaks.

A uniform rod of mass 15 kg is held stationary at 37 degree with the help of a light string as shown in Fig. The tension in the string is

A ball of mass 0.01 kg is suspended from a fixed point O by means of a light and inextensible string of length 10m. The ball is first taken aside such that string becomes horizontal and then released from reast. At the lowermost point of its path, it hits a stationary small block of mass 1.205kg lying on a rough horizontal surface. After striking the block, the ball rebounds and comes to rest when the string makes an angle of 30^@) with the horizontal . Due to the impact the block moves through a distance of 0.5m on the horizontal surface. Find the coefficient of friction between the block and the surface.

A small ball of mass 100 g is attached to a light and inextensible string of length 50 cm . The string is tied to a support O and the mass m released from point A which is a' a horizontal distance of 30cm from the support. Calculate the speed of the ball is its lowest point of the trajectory.

A rod is supported horizontally by means of two strings of equal length as shown in figure. If one of the string is cut. Then tension in other string at the same instant will.

Two particles each of mass m are connected by a light inextensible string and a particle of mass M is attached to the midpoint of the string. The system is at rest on a smooth horizontal table with string just taut and in a straight line. The particle M is given a velocity v along the table perpendicular to the string. Prove that when the two particles are about to collide : (i) The velocity of M is (Mv)/((M + 2m)) (ii) The speed of each of the other particles is ((sqrt2M (M + m))/((M + 2m)))v .

A body of mass m is suspended by two strings making angles alpha and beta with the horizontal. Find the tensions in the strings.

AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-ASSIGNMENT ( SECTION -B) objective type questions (one option is correct)
  1. A block is placed on a smooth inclined plane as shown . For what value...

    Text Solution

    |

  2. In the figure shown , two blocks of masses 2 kg and 4kg are connected ...

    Text Solution

    |

  3. Figure shows a small ball of mass m held at rest by means of two light...

    Text Solution

    |

  4. Force is applied on an object of mass 2 kg at rest on a frictionless h...

    Text Solution

    |

  5. In the arrangement shown, what is the normal reaction the block A ( ma...

    Text Solution

    |

  6. A block of mass 2 kg rests on the floor of an elevator , which is movi...

    Text Solution

    |

  7. A disc of radius 4 m is rotating about its fixed center with a constan...

    Text Solution

    |

  8. A circular track of radius 600 m is tio be designed for cars at an ave...

    Text Solution

    |

  9. A particle of mass m is moving on a circular path of radius r with uni...

    Text Solution

    |

  10. A block of mass m is kept on a plank . The coefficient of friction bet...

    Text Solution

    |

  11. A force of 100 N is applied on a block of mass 3 kg as shown in figure...

    Text Solution

    |

  12. A block of mass 5 kg is placed on a rough horizontal plane . The coeff...

    Text Solution

    |

  13. In the figure shown coefficient of friction between 8 kg block and sur...

    Text Solution

    |

  14. In the arrangement shown in figure coefficient of friction between 5kg...

    Text Solution

    |

  15. At a certain moment of time, acceleration of the block A is 2 m//s^(2)...

    Text Solution

    |

  16. A train is moving forward with a horizontal acceleration a. A man sitt...

    Text Solution

    |

  17. If pulley and all strings as shown are massless, then tension T(2) = 1...

    Text Solution

    |

  18. A block of mass 2 kg rests on an inclined plane of inclination angle 3...

    Text Solution

    |

  19. All surfaces shown in the figure are frictionless. A block of mass 2 k...

    Text Solution

    |

  20. In the given figure the co- efficient of friction between the block an...

    Text Solution

    |