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Movement is relative, momentum is not. Run as fast as you can and then come to a screeching halt where you lean backwards. You can’t do that on treadmill. You m
by codexb 3y ago
Movement is relative, momentum is not. Run as fast as you can and then come to a screeching halt where you lean backwards. You can’t do that on treadmill. You might be able to simulate the screech and the lean by moving you on the treadmill, but the rest of your body can feel that relative motion.
- c0pium 3y agoOf course you can, just put your feet on the sides instead of on the belt (don’t actually do this, you will absolutely hurt yourself).
- codexb 3y agoYou won't lean backwards like you do when stopping from a run because your body has no momentum.
- drdeca 3y agoMomentum does depend on frame of reference, I.e. it is relative. (change in momentum, however, is another story.)