we are given
A ball rolling down a hill was displaced 19.6 m
so,
the final velocity was 5.00m/s
so,
Since, a ball rolling down a hill was displaced
so, we get
we can use kinematic equation formula
Here ,
v is final velocity
u is initial velocity
a is acceleration
h is height from which ball is dropped
now, we can plug our values
................Answer
<u>Answer:</u>
The amount of fabric needed to cover the pyramid is .
<u>Step-by-step explanation:</u>
Given, the lantern is in the shape of a square pyramid. And the lantern has to be covered by a fabric. So, the amount of fabric needed to cover the lantern can be calculated by the following formula,
where p is the perimeter of the base of the pyramid and l is the slant height.
Since, it is given that it is a lantern, the area to be covered with the fabric is its L.S.A (Lateral Surface Area) leaving the base where the lamp is lit. So, the L.S.A of the pyramid is equal to the amount of fabric required to cover the lantern.