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प्रश्न
Define non-contact forces.
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उत्तर
The forces which act on a body without the help of any connector, are called non-contact forces or forces of distance. Gravitational force, Mechanical force, etc., are non-contact forces.
संबंधित प्रश्न
Moment of force = force × perpendicular distance of force – from the pivoted point.
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A spanner of length 10 cm is used to open a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.
What are non-contact forces? Give two example
State one factor on which the magnitude of a non-contact force depends. How does it depend on the factor stated by you?.
Name of S.I. unit of momentum.
The diagram in the figure shows a uniform metre rule weighing 100 gf, pivoted as its centre O. two weight 150 gf and 250 gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20 cm . Calculate
the total anticlockwise moment about o.
Classify the following amongst contact and non-contact forces.
gravitation force
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Fig. 5 shows a uniform meter scale weighing 200 gf. Provided at its centre. Two weights 300 gf and 500 gf are suspended from the ruler as shown in the diagram. Calculate the resultant torque of the ruler and hence calculate the distance from mid-point where a 100 gf should be suspended to balance the meter scale.
