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{"ops":[{"insert":"3.\tA girl walks forward 10m then comes back 7m.\u00a0\u00a0What are her distance travelled and her displacement? (T1:3)\n\n12.\tThe table below gives performance forgive for cars. (T3: 12)\n\n14. Two forces act on a parachutist during a drop. One force is the weight W (500N) of the parachutist. The other force is the upwards pull P (400N) from the parachute harness on the parachutist. The parachutist has a mass of 50 kg. (T5:14)\n\na.\tWhat is the size of the unbalanced force acting on the parachutist?\nb.\tWhat is the acceleration of the parachutist?\n\n6.\tA student of mass 50kg climbs the college stairs using 2500J of energy, calculate the height of the stairs. (T9:6)\n\n10.\tAn astronaut of mass 70 kg climbs to a height of 5 m on the moon and gains 560 J of gravitational potential energy. What must be the gravitational field strength on the moon? (T9:10)\n\n14.\tWhat is the speed of a stone of mass 2 kg if it has 36 J of kinetic energy? (T9:14)\n"}]}
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