Answer:
The answer is the 3rd option! 
 
        
             
        
        
        
Answer:
41.3 m/s^2 option (e)
Explanation:
force, F = 6.81 N 
mass, m = 165 g = 0.165 kg 
Let a be the acceleration of the puck. 
Use newtons' second law 
Force = mass x acceleration 
6.81 = 0.165 x a 
a = 41.27 m/s^2 
a = 41.3 m/s^2
Thus, the acceleration of the puck is 41.3 m/s^2. 
 
        
             
        
        
        
We know, Potential Energy = Force * Height
Here, F = 40 N
h = 5 m
Substitute their values, 
U = 40 * 5
U = 200 J
In short, Your Answer would be Option A
Hope this helps!
        
             
        
        
        
Answer:
F=ma is the relationship where, F is force, m is mass and a is acceleration.
Newton's second law states that  the unbalanced force applied to the object accelerates the object which is directly proportional to the force and inversely to the mass.
If we apply force to a toy car then It will accelerate.
This is how Newton's second law of motion is verified.