Arock is projected upward from the surface of the moon, at time t = 0.0 s, w a velocity of 30 m/s. the acceleration due to gravity at the surface of the moon in 1.62 m/s2. what is the maximum height of the rock above the surface?

Explanation:

The situation described here is parabolic movement. However, as we are told that the rock was projected upward from the surface, we will only use the equations related to the Y axis.

In this sense, the movement equations in the Y axis are:

   (1)

   (2)

Where:

 is the rock's final position

 is the rock's initial position

is the rock's initial velocity

is the final velocity

is the time the parabolic movement lasts

 is the acceleration due to gravity at the surface of the moon

As we know , equation (2) is rewritten as:

   (3)

On the other hand, the maximum height  is accomplished when :

   (4)

   (5)

Finding :

   (6)

Substituting (6) in (3):

   (7)

   (8)  Now we can calculate the maximum height of the rock

  (9)

Finally:

  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

higher potential

explanation:

because it is in a high speed so it must move into a of high potential