In this question, use g=9.8 m s−2g = 9.8 \text{ m s}^{-2}g=9.8 m s−2.
A robotic transport sled, SSS, is pulled across a rough horizontal factory floor.
A horizontal pulling force of magnitude PPP newtons acts on SSS.
SSS moves with a constant acceleration of 1.25 m s−21.25 \text{ m s}^{-2}1.25 m s−2.
SSS has a weight of 15.68 N15.68 \text{ N}15.68 N.
The only resistance force acting on SSS is due to friction.
The coefficient of friction between SSS and the floor is 0.30.30.3.
Find PPP.
108 exam-style questions on Edexcel A Level Maths Forces and Friction, covering 5.1 Resolving Forces, 5.2 Inclined Planes, and 5.3 Friction. Each one has a worked solution and a mark scheme showing where the marks go.