2 A block is being pulled along a horizontal floor by a rope inclined at \(20 ^ { \circ }\) to the horizontal. The tension in the rope is 851 N and the block moves at a constant speed of \(2.5 \mathrm {~m} \mathrm {~s} ^ { - 1 }\).

1. Show that the work done on the block in 12 s is approximately 24 kJ .
2. Hence find the power being applied to the block, giving your answer to the nearest kW .