Any help on soving this problem pls?

Question

The striker in a forging machine has a mass of 1.5tonnes. During the working stroke, the striker slides down the vertical guide rails from a height of 1.5m onto the work piece. Causing it to be compresses through a distance of 50mm before coming to rest. Friction between the striker and the rail is equivalent to a vertical force of 1500n at all speeds of sliding.

Determine the average force acting on the workplace.

Answer 1

Cool problem. It uses conservation of energy, PE = mgh, and E = F*dist

To get total energy, it is the potential energy of the striker before:

PE = mgh = 1500kg * 9.8m/s^2*(1.5+0.050)m

I'm not sure about adding the 50mm, but that's the way I read it.

From that total potential energy, deduct the friction:

Efriction = Ffriction * dist = 1500N * 1.55m

Now, remaining energy is absorbed by workpiece:

PE - Efriction = Fform * dist

Where dist = 50mm, solve for Fform.