pybricks.common.IMU: Change example to print G force.

Since we changed the acceleration units to mm/s/s, the output values are
fairly large.

The Matrix repr function prints values up to 999, so this avoids
truncating the output.

It is also a good demo of scalar division for a Matrix / Vector.

examples/pup/hub_primehub/imu_read_vector.py

@@ -4,8 +4,8 @@
 # Initialize the hub.
 hub = PrimeHub()
 
-# Get the acceleration vector.
-print(hub.imu.acceleration())
+# Get the acceleration vector in g's.
+print(hub.imu.acceleration() / 9810)
 
 # Get the angular velocity vector.
 print(hub.imu.angular_velocity())

examples/pup/hub_shared/imu_read_vector.py

@@ -5,8 +5,8 @@
 # Initialize the hub.
 hub = ExampleHub()
 
-# Get the acceleration vector.
-print(hub.imu.acceleration())
+# Get the acceleration vector in g's.
+print(hub.imu.acceleration() / 9810)
 
 # Get the angular velocity vector.
 print(hub.imu.angular_velocity())

examples/pup/hub_technichub/imu_read_vector.py

@@ -4,8 +4,8 @@
 # Initialize the hub.
 hub = TechnicHub()
 
-# Get the acceleration vector.
-print(hub.imu.acceleration())
+# Get the acceleration vector in g's.
+print(hub.imu.acceleration() / 9810)
 
 # Get the angular velocity vector.
 print(hub.imu.angular_velocity())