Answer:

Explanation:
Given
 -- initial velocity
 -- initial velocity
 --- height
 --- height
Required
Determine the time to hit the ground
This will be solved using the following motion equation.

Where

So, we have:


Subtract 30.2 from both sides





Solve using quadratic formula:

Where




Split the expression
 or
 or 
 or
 or 
Time can't be negative;  So, we have:


Hence, the time to hit the ground is 1.82 seconds
 
        
             
        
        
        
Answer:
Steel is almost 2.9 times heavier the aluminium.
 
        
             
        
        
        
Answer: 1.  walking across a carpet and touching a metal door handle            2. pulling your hat off and having your hair stand on end.
Explanation
:)
 
        
             
        
        
        
Answer:
nngh have
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Explanation:
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Explanation:
 
        
             
        
        
        
Explanation:
answer is attached, kindly see answer