Derivation of Impulse and Momentum

[IncognitoSOS]

Show that the kinetic energy of an object can be written in terms of the momentum as
KE = p^2/2m.

Homework Equations

KE = 1/2MV^2

The Attempt at a Solution

To be honest, I don't know where to even start with this problem. It equals PV/2 but I still need to find a way to derive p^2/2m

 

[Doc Al]

What's the definition of p?

 

[IncognitoSOS]

p=mv

 

[Doc Al]

p=mv

Now write v in terms of p and make use of it.