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Problem solving and graphs. 1. The graph shows how the vertical velocity of a parachutist changes from the moment the parachutist jumps from the aircraft

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Problem solving and graphs. 1. The graph shows how the vertical velocity of a parachutist changes from the moment the parachutist jumps from the aircraft until landing on the ground. Opens parachute 70 50 Vertical 40 velocity in metres per second 30 20 10 10 15 20 25 30 35 40 45 50 56 Time in seconds a. Record the two values of the terminal velocity before and after the parachutist opens his parachute. (2 marks) b. Find the distance travelled during the second terminal velocity reached after opening the parachute. (2 marks) 2. The ascent took 2 hours 30 to reach an altitude of 39,045m. What was the average velocity of the ascent? (2 marks) 3. If Felix reached the speed of sound (340.29 m/s at sea-level) about 34 seconds into the jump, how fast was he accelerating? (2 marks)

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