The only 'difference' is that they are different categories.
It's like asking "What's the difference between Susie and girl ?"
Or "What's the difference between Cadillac and car ?"
Displacement <em>IS</em> a vector quantity.
 
        
             
        
        
        
Answer:
The speed after being pulled is 2.4123m/s
Explanation:
The work realize by the tension and the friction is equal to the change in the kinetic energy, so:
 (1)
 (1)
Where:

Because the work made by any force is equal to the multiplication of the force, the displacement and the cosine of the angle between them.
Additionally, the kinetic energy is equal to  , so if the initial velocity
, so if the initial velocity  is equal to zero, the initial kinetic energy
 is equal to zero, the initial kinetic energy  is equal to zero.
 is equal to zero.
Then, replacing the values on the equation and solving for  , we get:
, we get:


So, the speed after being pulled 3.2m is 2.4123 m/s
 
        
             
        
        
        
Gravitational potential energy can be given by the equation 
PE = mgh
where m is the mass, 
g is the gravitational constant 9.81 or 10 depending on rounding
and h is the height
well weight is a force equiavlent to 
W= m*g
so comparing that to the potential energy equation, divide the potential energy by the height and you will get weight in Newtons
        
             
        
        
        
D=s(t) so it would be d=10(.19) d=.19 FOR BITH SNDWERS