Which of the following are (at least nearly) inertial reference frames and which are not? (Respond T if the frame is inertial, F if it is non inertial, and C if it is inertial for everyday purposes. The classification could be debatable, creating an opportunity to discuss the issues involved.)
(a) A non rotating frame floating in deep space
(b) A frame floating in deep space that rotates at 1 rev/h
(c) A non rotating frame attached to the sun
(d) A frame attached to the surface of the earth
(e) A frame attached to a car moving at a constant velocity
(f) A frame attached to a roller-coaster car
(a) A non rotating frame floating in deep space - T
(b) A frame floating in deep space that rotates at 1 rev/h - C
(c) A non rotating frame attached to the sun - C
(d) A frame attached to the surface of the earth - C
(e) A frame attached to a car moving at a constant velocity - C
(f) A frame attached to a roller-coaster car - F
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Relative Velocity: The driver of a motorboat that can move at 10 m/s in still water wishes to travel directly across a river in which the current flows at 5.0 m/s.(a) At what angle, measured from the upstream direction, should the driver head the boat?(b) How many minutes will it take to cross the river if it is 1.6 km wide at that point?
Fill in the blank(s) with the appropriate word(s).