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प्रश्न
What is the purpose of a machine?
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उत्तर
The purpose of a machine is:
(i) To multiply force
(ii) To obtain a gain or decrease in speed
(iii) To change to direction of application of force in a convenient direction
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संबंधित प्रश्न
A scissor is a _________ multiplier
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.
State four ways in which machines are useful to us.
State the incorrect statement:
Name a machine which is used to multiply speed ?
Stat the principle of an ideal machine.
Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
Complete the following sentence :
A scissors is a ___________ multiplier.
