Given :
Initial velocity, u = 12.5 m/s.
Height of camera, h = 64.3 m.
Acceleration due to gravity, g = 9.8 m/s².
To Find :
How long does it take the camera to reach the ground.
Solution :
By equation of motion :

Putting all given values, we get :

t = 2.56  and t = −5.116.
Since, time cannot be negative.
t = 2.56 s.
Therefore, time taken is 2.56 s.
Hence, this is the required solution.
 
        
             
        
        
        
Answer:
True or False
Explanation:
Because.....
easy 50% chance you are right
 
        
             
        
        
        
Answer:
No.
Explanation:
The force that two particle experience is inversely proportional to the sqare of the distance, this is:
 for a distance D
 for a distance D
If we move them so that D is doubled: 
 =
= 
Then the force they experience is one fourth of the original.
 
        
             
        
        
        
The correct answer is A. Installation of rigid metal conduit requires grounding and the grounding equipment used may weaken the structure.