Question

prove that mgh +1/2mv2=constant

Answer 1

According to energy conservation theorem

The total energy of the system remains constant.
i.e.
Potential energy + kinetic energy = constant

Now, potential energy = weight * height
Weight = mg
So, potential energy =mgh.

Now, kinetic energy = 1/2mv^2.
So,
Mgh + 1/2mv^2 = constant
Hence, proved.

Hope this will be helping you.
:)

Answer 2

here is your answer
hope it helps..........