Advertisements
Advertisements
प्रश्न
What is a machine?
Advertisements
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
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.
Name a machine to multiply force ?
Name a machine to change the point of application of force ?
Mechanical advantage (M.A.), load (L) and effort (E) are related as ______.
State the incorrect statement:
A force of 5 kgf is required to cut a metal sheet. A pair of shears used for cutting the metal sheet has its blades 5 cm long, while its handles is 10 cm long. What effort is needed to cut the sheet?
What is the purpose of a machine?
Give an example for each of the following uses of a machine:
to obtain gain in force,
Complete the following sentence :
A scissors is a ___________ multiplier.
Mention the advantages of using a machine.
