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Could you answer all three please A rock was dropped from a tall structure, lab the rock fell during the first four seconds. Table 2

Could you answer all three please

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A rock was dropped from a tall structure, lab the rock fell during the first four seconds. Table 2 gives the velocity at each of the four seconds, in feet per second (ft/s) . Table 2 Table 1 Time Velocity Distance Rock Falls Time 1 second 32 fu/s 16 ft second 2 seconds 64 ft/s 64 ft 2 seconds 3 seconds 96 ft/s 144 ft 3 seconds 4 seconds 128 ft/s 256 ft 4 seconds 21 19 Approximately what distance had the rock Suppose an open parachute had been fallen at 3.5 seconds? tied to the rock before it was dropped off the structure. Would this affect the rock's rate of fall? A 120 ft B 150 ft A No; because Earth's gravity is C 170 ft constant, the rock would fall at the D 200 ft same rate. B 20 If the same activity were repeated on Yes; the rock would fall more quickly the Moon, how would the rock's rate of because the parachute would add weight to the rock. fall be affected? C Yes; the rock would fall more slowly J It would fall at a faster rate because because the parachute would the atmosphere is less dense on the increase air resistance. Moon than it is on Earth. D Yes; the rock would fall more K It would fall at a slower rate because slowly because the weight of the the Moon's gravity is less than Earth's. parachute would counteract the L It would fall at about the same rate weight of the rock. because the volume of the rock would be the same. M It would fall at about the same rate because the mass of the rock would be the same. PAGE 52

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