Thursday, March 8, 2012
Surfing For Reaction Distance Time?
Betty asks…the average reaction time for a motorist is 0.70 sec. moving at 30 mph, the motorist applies on the brake systthe average reaction time for a motorist is 0.70 sec. moving at 30 mph, the motorist applies on the brake system a force equal to the weight of the car after receiving a signal to stop. what distance does it travel before coming to rest?Nancy answers:Since the force on the brake is equal to its weight, and neglecting all other losses, the deceleration = 9.8 m/s^2 (acc due
