Question 24
An accelerometer is a device to measure acceleration. At the earth sea level, the acceleration due to gravity is g = 9.8 ms-2. Most of the smartphones such as Android and Apple iPhone consist of a builtin accelerometer. If a smartphone is moving vertically upward at sea level with constant velocity 9.8 ms-1, the instantaneous scalar readings of the x, y, and z components from the accelerometer are:
x = __ g, y = __ g, z = 1 g
x = __ g, y = __ g, z = 1 g