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jim hardy
#4
Jan9-13, 12:30 PM
Sci Advisor
PF Gold
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P: 3,518
Acceleration of acceleration?

You can do a simple experiment to 'feel' this when braking your automobile.

As you get it almost stopped, lighten pressure on the brake so you don't slam back into seat when it stops, instead making a gradual approach to rest.

Acceleration with a negative sign is the force pushing you forward. Your passengers will appreciate your awareness of and attention to "jerk".