Home
Class 12
PHYSICS
A 2 kg stone at the end of a string 1 m ...

A 2 kg stone at the end of a string 1 m long is whirled in a vertical circle. At some point its speed is 4m/s. The tension of the string is 51.6 newton. At this instant the stone is :

A

at the top of the circle

B

at the bottom of the circle

C

half way down

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • RACE

    ALLEN|Exercise Basic Maths (COLLISION AND CENTRE OF MASS )|12 Videos

  • RACE

    ALLEN|Exercise Basic Maths (ROTATIONAL MOTION)|60 Videos

  • RACE

    ALLEN|Exercise Basic Maths (WORK POWER & ENERGY)|20 Videos

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos

  • SIMPLE HARMONIC MOTION

    ALLEN|Exercise Example|1 Videos

Similar Questions

Explore conceptually related problems

A stone at the end of a string is whirled in a vertical circle of radius r=1.20 m at a constant speed u=1.50m/s. the centre of the string is 1.50m above the ground. What is the range of the stone if it is released when the string is inclined at 30^(@) with the horizotnal (a) at A(b) at B? What is the accelration of the stone: (c) just before rleaseat A (d) just after release at A?

A 1kg stone at the end of 1m long string is whirled in a vertical circle at a constant speed of 4m//s . The tension in the string is 6N , when the stone is at (g=10m//s^(2))

Knowledge Check

  • A stone at the end of 1m long string is whirled in a vertical circle at a constant speed of 4ms^-1 . The tension in the string is 6N when the stone is

    A
    (a) `10ms^-1`
    B
    (b) `5sqrt3ms^-1`
    C
    (c) `10sqrt3ms^-1`
    D
    (d) `20ms^-1`

  • A 2kg stone at the end of a string 1 m long is whirled in a vertical circle . At a certain positon , the speed of the stone is 4m /s . The tension in the string will be 52 N, when the stone is [ g= 10 m//s^(2)]

    A
    at the bottom of the circle
    B
    at the top of the circle
    C
    at a height of half the radius from the bottom
    D
    at the ends of the horizontal diameter

  • A 2 kg stone at the end of a string 1 m long is whirled in a vertical circle at a constant speed. The speed of the stone is 4 m//sec . The tension in the string will be 52 N , when the stone is

    A
    At the top of the circle
    B
    At the bottom of the circle
    C
    Halfway down
    D
    None of the above

    • Similar Questions

    Explore conceptually related problems

    A stone of mass 1 kg tied at the end of a string of length 1 m and is whirled in a verticle circle at a constant speed of 3 ms^(-1) . The tension in the string will be 19 N when the stone is (g=10 ms^(-1))

    A 8kg stone tied at the end of a string 1 metre long is whirled in a vertical circle. At the instant when the string makes an angle theta with the vertical, the speed of the stone is 4ms^(-1) and the tension in the thread is 104N. Then theta is.

    A point mass of 2 kg tied to a string of 1 m length is rotated in a vertical circle with uniform speed of 4m/s. The tension in the string is nearly 32 N when mass is at

    A stone of mass 0.3 kg attached to a 1.5 m long string is whirled around in a horizontal circle at a speed of 6 m/s. The tension in the string is

    A stone of mass of 1 kg is tied to the end of a string 1 m long. It is whirled in a vertical circle. The velocity of the stone at the bottom of the circle is just sufficient to take it to the top of circle without slackening of the string. What is the tension in the string at the top of the circle? (Take, g =10 ms^(-2) )

    Home
    Profile