Moderate -0.3 This is a straightforward mechanics problem requiring application of energy methods or equations of motion with resistance. Students must identify forces, apply SUVAT or work-energy principles, and solve a single equation. While it involves resistance (making it slightly less routine than basic projectile motion), the setup is clear and the solution method is standard for M2, requiring no novel insight.
A stone, of mass 0.9 kg, is projected vertically upwards with speed 10 ms\(^{-1}\) in a medium which exerts a constant resistance to motion. It comes to rest after rising a distance of 3.75 m.
Find the magnitude of the non-gravitational resisting force acting on the stone. [5 marks]
A stone, of mass 0.9 kg, is projected vertically upwards with speed 10 ms$^{-1}$ in a medium which exerts a constant resistance to motion. It comes to rest after rising a distance of 3.75 m.
Find the magnitude of the non-gravitational resisting force acting on the stone. [5 marks]
\hfill \mbox{\textit{Edexcel M2 Q2 [5]}}