Advertisements
Advertisements
Question
With reference to the terms Mechanical Advantage, Velocity Ratio and efficiency of a machine, name and define the term that will not change for the machine of a given design.
Advertisements
Solution
Velocity ratio.
It is the ratio of the velocity of effort to the velocity of the load.
`V.R = V_E/V_L`
APPEARS IN
RELATED QUESTIONS
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.
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.
Stat the principle of an ideal machine.
Complete the following sentence :
Mechanical advantage = ___________ × velocity ratio
Mention the advantages of using a machine.
