00:01
Hello students, in the given question the distance over which the force is applied is equal to 3 .3 meter and the distance over which the load moves is equal to 8 centimeter or it is 0 .08 meter.
00:20
First we have to calculate the instant mechanical advantage.
00:25
So instant mechanical advantage is equal to distance over which the force applied divided by the distance over which the load moves that is 3 .3 divided by 0 .08 which is equal to 41 .25.
00:45
So ima is equal to 41 .25 and next is we have to calculate the actual mechanical advantage if efficiency is equal to 60 percent.
01:06
So to calculate the actual mechanical advantage we know the formula efficiency is equal to actual mechanical advantage divided by instant mechanical advantage.
01:21
Here it is 60 percent that is 0 .060 equal to ima divided by ima.
01:36
Here ima we have calculated in the previous part so that will be equal to ima is equal to 0 .60 into 41 .25.
01:49
This will give ima that is actual mechanical advantage is equal to 24 .75 or we can say approximately as 25.
02:03
This is the answer for second part of the question.
02:07
For third part it is given that the force applied is equal to 50 newton and we have to calculate the load which can be lifted if the efficiency is 100 percent...