The picture shows a weight lifter - Edexcel - GCSE Physics - Question 1 - 2012 - Paper 1

To calculate the height lifted, we can use the relationship between work, force, and height:

$$W = F \cdot h$$

Where:

• W is the work done (5040 J)
• F is the force, which is equal to the weight of the mass lifted. The weight can be calculated as:

$$F = m \cdot g$$

with:

• m = 240 kg (mass)
• g = 10 N/kg (gravitational field strength)

Calculating the weight:

$$F = 240 \text{ kg} \cdot 10 \text{ N/kg} = 2400 \text{ N}$$

Now substituting F back into the work formula:

$$5040 = 2400 \cdot h$$

Solving for h:

$$h = \frac{5040}{2400} = 2.1 \text{ m}$$

Thus, the height he lifts this mass is 2.1 m.