A 1200N load is to be lifted with 200N effort using a first class lever. At what distance from the fulcrum must the effort be applied when the load is 15 cm away from the
fulcrum?
[Ans: 90 cm]

Explanation:

Hey there!!

Let's simply work with it.

Here,

load = 1200N

Effort = 200N

Load distance = 15cm

We have,

According to the principle of lever.

L×LD = E×ED.

1200×15 = 200× ED.

18000 = 200ED.

Therefore, Effort Distance = 90cm.

Hope it helps....

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

there are no components of a physical goal mentioned on the list of choices that you've provided.