Tuesday, October 25, 2011

How far will the car have moved before you begin to slow down?

You are driving down the street in a car at 55 km/h. Suddenly a child runs into the street. If it takes you 0.75 s to react and apply the brakes, how far will the car have moved before you begin to slow down?
How far will the car have moved before you begin to slow down?
55 km/h x 0.75 s =

55000 m / 3600 s x 0.75 s =

11 s



Th
How far will the car have moved before you begin to slow down?
Agree with Th method :



5.5/3.6*7.5 metres



just under 11.5 metres

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