potential, kinetic, elastc energies
 
        
             
        
        
        
Answer:
there are 25 kg objective travelling at 2m/s to the right.
 
        
             
        
        
        
Answer: The illusion of motion that occurs when a stationary object is first seen briefly in one location and, following a short interval, is seen in another location.
Explanation:
 
        
             
        
        
        
Answer:

Explanation:
Acceleration is given by

where
 is the change in velocity
 is the change in velocity
 is the time interval in which the change in velocity occurs
 is the time interval in which the change in velocity occurs
To find the acceleration at 1 second, we can take the data at t = 1 s and t = 2. We find:


So, the acceleration is
