Answer:
The acceleration of the object is  
 
Explanation:
Given:
Initial velocity of object  = 200 feet/second
 = 200 feet/second
Final velocity of object  = 50 feet/second
 = 50 feet/second
Time of travel = 5 seconds
To calculate acceleration of the object we will find the rate of change of velocity with respect to time.
So, acceleration  is given by:
 is given by:

where  represents final velocity,
 represents final velocity,  represents initial velocity and
 represents initial velocity and  is time of travel.
 is time of travel.
Plugging in values to evaluate acceleration.



The acceleration of the object is  (Answer). The negative sign shows the object is slowing down.
 (Answer). The negative sign shows the object is slowing down. 
 
        
             
        
        
        
Answer:

Explanation:
<u>Average Acceleration
</u>
Acceleration is a physical magnitude defined as the change of velocity over time. When we have experimental data, we can compute it by calculating the slope of the line in velocity vs time graph.
Note: <em>We cannot see if the time axis is numbered in increments of 1 second, and we'll assume that.
</em>
When  , the graph shows a value of
, the graph shows a value of  
When  , the object is at rest,
, the object is at rest, 
We compute the average acceleration as




 
        
             
        
        
        
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</span>
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