Home
Class 11
PHYSICS
A simple pendulum with a bob of mass m i...

A simple pendulum with a bob of mass `m` is suspended from the roof of a car moving with horizontal acceleration a

A

The string makes an angle of `tan^(-1)(a//g)` with the vertical

B

The string makes an angle of `sin^(-1)((a)/(g))` with the vertical

C

The tension in the string is `msqrt(a^(2) + g^(2))`

D

The tension in the string is `msqrt(g^(2) - a^(2))`

Text Solution

Verified by Experts

The correct Answer is:
A, C
`tan theta = (ma)/(mg) = (a)/(g)`

`theta = tan^(-1)((a)/(g))`
`T = F_(net)`
` = msqrt(a^(2) + g^(2))`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SIMPLE HARMONIC MOTION

    DC PANDEY|Exercise Level 2 Comprehension|2 Videos

  • SIMPLE HARMONIC MOTION

    DC PANDEY|Exercise Level 2 Subjective|18 Videos

  • SIMPLE HARMONIC MOTION

    DC PANDEY|Exercise Level 2 Single Correct|28 Videos

  • SEMICONDUCTORS AND ELECTRONIC DEVICES

    DC PANDEY|Exercise More than One Option is Correct|3 Videos

  • SOLVD PAPERS 2017 NEET, AIIMS & JIPMER

    DC PANDEY|Exercise Solved paper 2018(JIPMER)|38 Videos

Similar Questions

Explore conceptually related problems

The length of a simple pendulum is 16 cm . It is suspended by the roof of a lift which is moving upwards with an accleration of 6.2 ms^(-2) . Find the time period of pendulum.

A simple pendulum having bob of maas m is suspended from the ceiling of a car used in a stunt film shooting. The car moves up along an inclined cliff at a speed v and makes a jump to leavwe the cliff and lands at some the top of the cliff. The tension in the string when the car is in air is

Knowledge Check

  • A simple pendulum with a bob of mass m is suspended from the roof of a car moving with a horizontal acceleration a.

    A
    The string makes an angle of `tan^(-1)(a//g)` with the vertical
    B
    The string makes an angle of `tan^(-1) (1-(a)/(g))` with the vertical
    C
    The tension in the string is `msqrt(a^(2)+g^(2))`
    D
    The tension in the string is `m sqrt(g^(2)-a^(2))`

  • A simple pendulum with a bob of mass m is suspended from the roof of a car moving with a horizontal accelertion a. The angle made by the string with verical is

    A
    `tan^(-1)((a)/(g))`
    B
    `tan^(-1)(1-(a)/(g))`
    C
    `cos^(-1)((a)/(g))`
    D
    `sin^(-1)((a)/(g))`

  • A pendulum with a bob of 0.1kg is suspended from the roof of a car which is moving with an acceleration of 5 m//s^(2) relative to the ground towards right . An observer travelling in the car experiences a pseudo force acting on the bob equal to :

    A
    1.0 N downwards
    B
    1.0 N upwards
    C
    0.5 N towards right
    D
    0.5 N towards left

    • Similar Questions

    Explore conceptually related problems

    A simple pendulum is hanging from the roof of a trolley which is moving horizontally with acceleration g. If length of the string is L and mass of the bob is m, then time period of oscillation is

    A simple pendulum of length L is suspended from the roof of a train. If the train moves in a horizontal direction with an acceleration 'a' then the period of the simple pendulum is given by

    A simple pendulum is suspended from the roof of a train. If the train is moving with an acceleration 49 cm//s^(2) . Then the angle of inclination of the string about the vertical will be

    A simple pendulum is suspended from the roof of a trolley which moves in a horizontal direction with an acceleration alpha , then the time period is given by T = 2pisqrt(((I)/(T))) where g is equal to

    A simple pendulum 50cm long is suspended from the roof of a acceleration in the horizontal direction with constant acceleration sqrt(3) g m//s^(-1) . The period of small oscillations of the pendulum about its equilibrium position is (g = pi^(2) m//s^(2)) ltbRgt

    Home
    Profile