Home
Class 10
PHYSICS
A stone tied to a string is whirled in a...

A stone tied to a string is whirled in a circle. As it is revolving, the rope suddenly breaks. Then

A

the stone flies off tangentially

B

the stone moves radially inward

C

the stone moves radially outward

D

the motion of the stone depends upon its velocity

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of what happens to a stone tied to a string when it is whirled in a circle and the rope suddenly breaks, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Circular Motion**: - When the stone is being whirled in a circle, it is undergoing circular motion. In this motion, the stone experiences a centripetal force that acts towards the center of the circle, keeping it in its circular path. 2. **Identifying Forces**: - The centripetal force is provided by the tension in the string. This force is responsible for changing the direction of the stone's velocity, allowing it to move in a circular path. 3. **Direction of Velocity**: - At any point in circular motion, the stone has a velocity that is directed tangentially to the circle. This means that if we were to draw a line at the point where the stone is located, the velocity vector would be perpendicular to the radius of the circle at that point. 4. **What Happens When the Rope Breaks**: - When the rope suddenly breaks, the centripetal force that was keeping the stone in circular motion is no longer acting on it. As a result, the stone will no longer follow the circular path. 5. **Path of the Stone After the Break**: - Since the stone was moving tangentially at the moment the rope broke, it will continue to move in a straight line in the direction of the tangent to the circle at that point. This is due to Newton's first law of motion, which states that an object in motion will continue in its state of motion unless acted upon by an external force. 6. **Conclusion**: - Therefore, when the rope breaks, the stone flies off tangentially to the circle at the point where the rope broke. ### Final Answer: The stone flies off tangentially. ---
To solve the problem of what happens to a stone tied to a string when it is whirled in a circle and the rope suddenly breaks, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Circular Motion**: - When the stone is being whirled in a circle, it is undergoing circular motion. In this motion, the stone experiences a centripetal force that acts towards the center of the circle, keeping it in its circular path. 2. **Identifying Forces**: ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOTION

    MCGROW HILL PUBLICATION|Exercise HIGHER ORDER THINKING QUESTIONS|48 Videos

  • MISCELLANEOUS QUESTIONS

    MCGROW HILL PUBLICATION|Exercise PART-B|99 Videos

  • REFLECTION OF LIGHT

    MCGROW HILL PUBLICATION|Exercise HIGHER ORDER THINKING QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

A stone tied at the end of string is whirled in a circle. If the string break, the stone flies away tangentially . Why ?

Mark the statement true(T) or false (F): A stone tied to a string is whirled in a circle . The work done by the weight of the stone for a small displacement is zero.

Knowledge Check

  • A stone tied to a string is rotated in a circle. If the string is cut, the stone flies away from the circle because

    A
    A centripetal force acts on the stone
    B
    A centripetal force acts on the stone
    C
    Of its inertia
    D
    Reaction of the centripetal force

  • A stone is tied with a string and is rotated in a circle horizontally. When the string suddenly breaks, the stone will move

    A
    tangential to the motion
    B
    away from the centre
    C
    towords the centre
    D
    none of these

  • When a stone tied to a string is whirled in a circle, the work done on it by the string is

    A
    positive
    B
    negative
    C
    zero
    D
    undefined

    • Similar Questions

    Explore conceptually related problems

    A particle tied with a string is whirled along a vertcial circle.

    A body of mass m is tied to free end of dtring and whiled in a circle about the other end .If the string suddenly breaks , then

    A stone tied to a string of length L is whirled in a vertical circle, with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position, and has a speed u. The magnitude of change in its velocity as it reaches a position, where the string is horizontal is

    A stone tied to a string of length L is whirled in a vertical circle with the ofter end of the string at the centre . At a certin instant of time , the stone is at its lowest position , and has a speed is , the magintube of the change in its velocity as it reached a positive when the string is horizontal is

    A stone tied to a string of length L is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in its velocity as it reaches a position where the string is horizontal is

    Home
    Profile