A box of mass 22 kg must be raised 1.3 m…

Step 1. (a) Both ways: $W = mgh = 22\ \text{kg} \times 9.8\ \text{m/s}^2 \times 1.3\ \text{m} = 280\ \text{J}$.

Step 2. (b) Straight up. The force is the weight: $22\ \text{kg} \times 9.8\ \text{m/s}^2 = 215.6\ \text{N}$.

Step 3. (b) Slope. $F \times 5.2\ \text{m} = 280.3\ \text{J}$, so $F = 53.9\ \text{N}$.