A package is raised through 4.0 m. Its speed increases from zero to 3.0 m/s during the lift. The package has mass 2.0 kg. Use g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg. What is the total increase in its kinetic and gravitational potential energies?
80 J80\ \mathrm{J}80 J
86 J86\ \mathrm{J}86 J
89 J89\ \mathrm{J}89 J
98 J98\ \mathrm{J}98 J
121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.