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27 Nov 2019
. Consider two cars, a 700kg Porsche and a 600kg Honda Civic. ThePorsche is speeding along at 40 m/s (mph) and the Civic is goinghalf the speed at 20 m/s. If the two cars brake to a stop with thesame constant acceleration, lets look at whether the amount of timerequired to come to a stop or the distance traveled prior tostopping is influenced by their initial velocity.
1. A car traveling 5m/s slams on its brakes, creating anacceleration of -2 m/s2. How far did the car travel after itapplied its brakes? __________
2. The same car traveling for 10m/s applies the same accelerationof -2 m/s2. How far did the car travel after it applied its brakes?__________
I am obviously using the formula wrong.. wouldn't it be d=at^2
. Consider two cars, a 700kg Porsche and a 600kg Honda Civic. ThePorsche is speeding along at 40 m/s (mph) and the Civic is goinghalf the speed at 20 m/s. If the two cars brake to a stop with thesame constant acceleration, lets look at whether the amount of timerequired to come to a stop or the distance traveled prior tostopping is influenced by their initial velocity.
1. A car traveling 5m/s slams on its brakes, creating anacceleration of -2 m/s2. How far did the car travel after itapplied its brakes? __________
2. The same car traveling for 10m/s applies the same accelerationof -2 m/s2. How far did the car travel after it applied its brakes?__________
I am obviously using the formula wrong.. wouldn't it be d=at^2
