Connect Your Understanding 5. A metre stick is used as a lever. If the
input force is applied at 0 cm and the
output force is exerted at 100 cm, what is
the ideal mechanical advantage if the
fulcrum is at 75 cm?

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

i don't know that i agree with that but what's the question ?

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.