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प्रश्न
What is a machine?
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उत्तर
A machine is a device by which we can overcome resistance by applying a comparatively small force at a convenient point and in the desired direction or obtain a gain in speed.
संबंधित प्रश्न
What is the principle of an ideal machine?
Two forces each of 5N act vertically upwards and downwards respectively on the two ends of a uniform metre rule which is placed at its mid-point as shown in the diagram. Determine the magnitude of the resultant moment of these forces about the midpoint.
Draw a diagram to show how a single pulley can be used so as to have its ideal M.A= 2.
Name a machine to multiply force ?
‘The force needed to push a load up an inclined plane is less than the force needed to lift it directly’ Give a reason.
What is the purpose of a machine?
Work is the application of a ....... through a distance.
Stat the principle of an ideal machine.
Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
Complete the following sentence :
A scissors is a ___________ multiplier.
