Step-by-step explanation:
her this is the answer for the question
 
        
             
        
        
        
The answer should be A
please let me know if this is wrong
        
             
        
        
        
Given :
A particle moves in the xy plane starting from time = 0 second and position (1m, 2m) with a velocity of v=2i-4tj  .
To Find :
A. The vector position of the particle at any time t .
B. The acceleration of the particle at any time t .
Solution :
A )
Position of vector v is given by :

B )
Acceleration a is given by :

Hence , this is the required solution .
 
        
             
        
        
        
20% are cats. 
20 cats/300 total animals=0.2
0.2 is the same thing as 20%.