Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
Effort arm = 10 cm
Load arm = 5 cm
Mechanical advantage = M.A = `"Effort arm"/"Load arm"`
M.A. = `10/5`
M.A. = 2
Load = 5 kgf
Effort = `"Load"/"M.A." = 5/2` = 2.5 kgf
APPEARS IN
संबंधित प्रश्न
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.
A scissor is a _________ multiplier
What is the principle of an ideal machine?
Name a machine to change the point of application of force ?
Mechanical advantage (M.A.), load (L) and effort (E) are related as ______.
‘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?
Stat the principle of an ideal machine.
Complete the following sentence :
A scissors is a ___________ multiplier.
Under what condition will a set of gears produce a gain in speed
