Type the correct answer in the box. use numerals instead of words. the mechanical advantage shown in the image is [blank} .

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system.

now here we can say that mechanical advantage is given as

here we know that

output force = 156 N

input force = 52 N

so we will have

so here mechanical advantage is 3

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.