The pilot of a helicopter drops a lead brick from a height of 500 m. (assume no air resistance and g~10 m/s2) roles Evalu How long does it take to reach the ground?

The  value  is  

Explanation:

From the question we are told that

  The  height is  

  The acceleration is  

Generally from the second equation of motion we have that

Here  the initial velocity u =  0  m/s  given that the stone started from rest

       So

=>        

explanation:

newton's third law, for every action there is an equal and opposite reaction.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2