Inertia: a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. (Oxford Dictionary)
Objects of greater mass will have greater inertia; i.e., greater resistance to any force that makes them accelerate.
Rank the following in terms of increasing inertia:
A. A 10,000 kg train car at rest
B. A 100 kg person running at 5 m/s
C. A 1200 kg car going 15 m/s
D. A 15 kg meteor going at a speed of 1000 m/s
1 answer
1 answer