Work Required to Move a Piano Onto a Truck

[Aliyah Case]

Homework Statement

Movers must push a piano onto a truck, the bed of which is a height 1.35 m above the ground. To do this they will use a frictionless ramp. If the piano has a mass of 1806.0 kg and the movers push it up the slope at a constant velocity, how much work do they need to do on it to move it into the bed? Please provide your answer in kilo-Joules (kJ), as the amount of work should be quite large

Homework Equations

I know it involves kinetic and potential energy
K = (1/2)mv2
U = mgh

The Attempt at a Solution

I'm not sure how to calculate the velocity

 

[haruspex]

I'm not sure how to calculate the velocity

You do not need to worry about the velocity. The question is a little misleading: they mean how much more energy is needed assuming it starts up the ramp already at that velocity.