How many meters will the car have moved before it begins to slow down?

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How many meters will the car have moved before it begins to slow down?

A car is moving down a street at 55 km/h. a child suddenly runs into the street. If it takes the driver 0.75 s to react and apply the breaks.

2006-09-17 14:13:45 · 2 answers · asked by Falling Star 1 in Science & Mathematics ➔ Physics

2 answers

I would convert the speed into units of meters per second and then multiply by .75 seconds.
55(km/h)*(1000m/1km)*(1h/3600sed)*.75sec=answer
equals about 11.46 meters.

2006-09-17 15:03:29 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋

u dont mention the brake? force of the brake usually also calculated.

2006-09-17 14:17:16 · answer #2 · answered by richi rasyid 4 · 0⤊ 0⤋