[ Simple machine ] 1. In a machine 500N load is lifted upto 2m by applying an efforts
of 250N. if the effort covers a distance of 8m calculate:
a. MA
b. VR
load
c. Efficiency of a machine[Hint:MA=
effort
effort distance
VR=
Efficiency - Max100]
load distance

2.5 m

Explanation:

Load ( L ) = 500 N

Effort ( E ) = 200 N

Load distance ( LD ) = 3 m

Effort distance ( ED ) = ?

Now, Let's find the Effort distance ( ED )

We know that,

Output work = Input work

i.e L × LD = E × ED

plug the values

multiply the numbers

Swipe the sides of the equation

Divide both sides of the equation by 200

Calculate

Hope this helps..

best regards!!

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards