Grade 12 Physics: Work and Energy

A mover pushes a sofa across the floor of a van. The mover applies a force of 475 N horizontally, moving the sofa 1.2 m. Calculate the work done on the sofa by the mover. Open question →

A 0.3 kg soccer ball is dropped from the top of a 10 m building and strikes the ground with a speed of 12 m/s. Using the conservation of energy, calculate the energy lost due to air resistance. Open question →

A 60 kg diver jumps from a 10 m high diving board. Calculate the change in the diver's gravitational potential energy from the top of the board to the water surface. Open question →