Laptop computers are equipped with accelerometers that sense when the device is dropped and then put the hard drive into a protective mode. Your computer geek friend has written a program that reads the accelerometer and calculates the laptop’s apparent weight. You’re amusing yourself with this program on a long plane flight. Your laptop weighs just 5 pounds, and for a long time that’s what the program reports. But then the “Fasten Seatbelt” light comes on as the plane encounters turbulence. For the next 12 seconds, your laptop reports rapid changes in apparent weight, as shown in Fig. 4.29. FIGURE 4.29 The laptop’s apparent weight (Passage Problems 76-79). The plane’s vertical acceleration has its greatest magnitude a. during interval B. b. during interval C. c. during interval D.
Laptop computers are equipped with accelerometers that sense when the device is dropped and then put the hard drive into a protective mode. Your computer geek friend has written a program that reads the accelerometer and calculates the laptop’s apparent weight. You’re amusing yourself with this program on a long plane flight. Your laptop weighs just 5 pounds, and for a long time that’s what the program reports. But then the “Fasten Seatbelt” light comes on as the plane encounters turbulence. For the next 12 seconds, your laptop reports rapid changes in apparent weight, as shown in Fig. 4.29. FIGURE 4.29 The laptop’s apparent weight (Passage Problems 76-79). The plane’s vertical acceleration has its greatest magnitude a. during interval B. b. during interval C. c. during interval D.
Laptop computers are equipped with accelerometers that sense when the device is dropped and then put the hard drive into a protective mode. Your computer geek friend has written a program that reads the accelerometer and calculates the laptop’s apparent weight. You’re amusing yourself with this program on a long plane flight. Your laptop weighs just 5 pounds, and for a long time that’s what the program reports. But then the “Fasten Seatbelt” light comes on as the plane encounters turbulence. For the next 12 seconds, your laptop reports rapid changes in apparent weight, as shown in Fig. 4.29.
FIGURE 4.29 The laptop’s apparent weight (Passage Problems 76-79).
The plane’s vertical acceleration has its greatest magnitude
A fisherman is fishing from a bridge and is using a "30.0-N test line." In other words, the line will sustain a maximum force of 30.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in (a) at constant speed and (b) with an acceleration whose magnitude is 2.16 m/s2?
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