- A person has a suitcase with wheels. The person pulls the suitcase with a horizontal force of 13 N for 110 m. Calculate the work done on the suitcase by the person (3 marks).
- How do you calculate efficiency?
- Define Newton's three laws
- What is the density of a rock (mass 75g) submerged in water which displaced by a volume of 37.5cm^3? SI units
- What is the actual difference between the weight and the mass of an object?