A scientific research drone of mass 32 kg is performing a docking maneuver at an asteroid base. Upon contact with the electromagnetic braking grid, the drone is brought to a complete stop in 90 milliseconds90\text{ milliseconds}90 milliseconds. During this arrestment, the grid exerts an average retarding force of 4.8 kN4.8\text{ kN}4.8 kN on the drone.
Calculate the speed of the drone at the instant it first made contact with the electromagnetic grid. Show your working.
Practise AQA GCSE Physics Momentum (HT only) with exam-style questions for Foundation and Higher tier. 9 questions covering Momentum is a property of moving objects, Conservation of momentum, and Changes in momentum (physics only), matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.