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2. (a) A skydiver jumps from a helicopter at Point P and after 15 seconds, opens his parachute and falls at a constant rate. The graph below shows the height, h, that the skydiver is above the ground after t seconds. 7500 7000 6500 P 6000 S900 5000 4500 Height, h (metres) 4000 Q 3500 3000 2500 R 2000 2500 1000 500 0 10 15 20 25 30 35 40 SO 65 70 75 Time taken, t (seconds) o en How far above the ground is the skydiver after 30 seconds? [1] (ii) Calculate the slope of the line QR and explain what this value means in terms of h and t. [3] (iii) How long in seconds) will the skydiver take to reach the ground, falling at the same rate as from Q to R? [1]

2 a A skydiver jumps from a helicopter at Point P and after 15 seconds opens his parachute and falls at a constant rate The graph below shows the height h that class=
2 a A skydiver jumps from a helicopter at Point P and after 15 seconds opens his parachute and falls at a constant rate The graph below shows the height h that class=


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