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Standard XIII

Physics

Torque Due to Gravity

A ruler scale...

Question

A ruler scale is balanced with two fingers, $F_{1} a n d F_{2}$ at a separation 20 cm and 40 cm from O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

F_{1}

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F_{2}

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Both simultaneously

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Insufficient data

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Solution

The correct option is B $F_{2}$
As explained by Avinash in the previous videoclip, the farther finger will exert lower force. This will reduce the frictional force on that finger and it slides. In this case the same happens with Finger 2.

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Similar questions

Q. A ruler scale is balanced with two fingers,

F_{1} a n d F_{2}

at a separation 20 cm and 40 cm from O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

Q. A ruler scale is balanced with two fingers,

F_{1} a n d F_{2}

at a separation 20 cm and 40 cm from O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

A ruler scale is balanced with two fingers, $F_{1}$ and $F_{2}$ at a separation 20 cm and 40 cm from the centre of the scale O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

Q. Put a uniform meter scale horizontally on your extended index fingers with the left one at

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x_{R}

from the center

(50.00 cm)

of the scale and the left one starts slipping again. This happens because of the difference in the frictional forces on the two fingers. If the coefficients of static and dynamic friction between the fingers and the scale are

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and

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Q. If you want to balance a circular object on your finger, where should you place your finger?

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A ruler scale is balanced with two fingers, F1andF2 at a separation 20 cm and 40 cm from O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

The correct option is B F2As explained by Avinash in the previous videoclip, the farther finger will exert lower force. This will reduce the frictional force on that finger and it slides. In this case the same happens with Finger 2.

A ruler scale is balanced with two fingers, $F_{1} a n d F_{2}$ at a separation 20 cm and 40 cm from O respectively. If the person balancing the ruler tries to bring his fingers closer to the centre, which finger will slide first?

The correct option is B $F_{2}$
As explained by Avinash in the previous videoclip, the farther finger will exert lower force. This will reduce the frictional force on that finger and it slides. In this case the same happens with Finger 2.