Advertisements
Advertisements
Question
Class II levers are designed to have ______.
Options
M.A. = V.R.
M.A. > V.R.
M.A. > 1
M.A. < 1
Advertisements
Solution
Class II levers are designed to have M.A. > 1.
Reason:
In class II levers, the load is in between the effort and fulcrum. Thus, the effort arm is always longer than the load arm and less effort is needed to overcome a large load. Hence, M.A > 1
APPEARS IN
RELATED QUESTIONS
Which class of lever will always have MA > 1 and why?
Write down a relation expressing the mechanical advantage of a lever.
The lever for which the mechanical advantage is less than 1 has :
Fig 3.17 below shows a lever in use.
(a) To which class of lever does it belong?
(b) If FA = 80 cm, AB = 20 cm, find its mechanical advantage.
(c) Calculate the value of E.
Give three examples for leavers of the third order.
Which class of lever found in the human body is being used by a boy when he holds a load on the palm of his hand.
The following belong to which class of lever?
Sugar tongs
The following belong to which class of lever?
A pair of scissors
What is a lever?
What is a first-order lever?
