The box has a mass of 57 kg - Edexcel - GCSE Physics - Question 4 - 2022 - Paper 1

To find the change in gravitational potential energy (ΔGPE), we need to substitute the values into the equation:

$$ΔGPE = m imes g imes Δh$$

Substituting the known values:

• Mass (m) = 57 kg
• Gravitational field strength (g) = 10 N/kg
• Height change (Δh) = 2.1 m

Thus,

$$ΔGPE = 57 imes 10 imes 2.1$$

Calculating this gives:

$$ΔGPE = 1197 J$$

Rounded to a suitable number of significant figures, the change in gravitational potential energy is approximately 1200 J.