H=15m m=10кг Ep

It looks like you have provided values for height (h = 15m), mass (m = 10kg), and the symbol "Ep" which usually stands for potential energy.

To calculate potential energy (Ep) of an object at a certain height, you can use the formula:

Ep = m * g * h

where: m = mass of the object (10kg) g = acceleration due to gravity (approx. 9.81 m/s^2) h = height above a reference point (15m)

Substitute the given values into the formula:

Ep = 10kg * 9.81m/s^2 * 15m

Ep = 1473 Joules

So, the potential energy of the object at a height of 15m is 1473 Joules.