An automated robotic arm on a Mars lander lifts a rock core sample of mass 0.75 kg vertically upwards through a height of 3.2 m to place it inside an onboard spectrometer.
The gravitational field strength on Mars is g=3.7 N/kgg = 3.7\text{ N/kg}g=3.7 N/kg.
Calculate the change in gravitational potential energy of the sample.
Use the equation:
ΔGPE=m×g×Δh \Delta \text{GPE} = m \times g \times \Delta h ΔGPE=m×g×Δh