Work out conservation of energy instantly with clear inputs, formula shown and shareable results.
With no friction the sum of potential and kinetic energy stays constant, so all the height converts to speed. Adding mgh to the initial kinetic energy and solving for v gives the arrival speed. A 3 kg mass starting 12 m up at 2 m/s arrives at about 15.4 m/s, and notice the mass cancels - a heavy and a light object arrive together.
Energy conservation
mgh + 0.5mu^2 = 0.5mv^2
Arrival speed
v = sqrt(2gh + u^2)
Because it appears in every term and cancels. The energy available scales with mass but so does the inertia to be accelerated.
Some energy becomes heat, so the arrival speed is lower. Subtract the friction work, force times distance, from the total before solving.