A robotic drilling unit is tested before being sent to the surface of a dwarf planet. On the Earth, where g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg, the drilling unit weighs 680 N. On the dwarf planet, a calibration block of mass 2.5 kg has a weight of 1.5 N.
Calculate the weight of the drilling unit on the dwarf planet.
80 exam-style questions on Edexcel GCSE Physics 7.1 The Solar System and gravity, covering 7.1.1 Weight and g on different bodies in space, 7.1.2 The Solar System, 7.1.3 Changing ideas about the Solar System, 7.1.4 Orbits of moons, planets, comets and satellites, and 7.1.5 Gravity and orbital motion. Each one has a worked solution and a mark scheme showing where the marks go.