A funicular railway car ascends a mountain slope from a lower station to an upper station as shown in the elevation diagram below.
The gravitational potential energy of the loaded railway car increases by 2.058 × 106 J when travelling from the lower station to the upper station.
Calculate the total mass of the loaded railway car.
Take gravitational field strength, g=9.8 m/s2g = 9.8\text{ m/s}^2g=9.8 m/s2
Use the equation:
ΔEp=m×g×Δh \Delta E_p = m \times g \times \Delta h ΔEp=m×g×Δh