Ask a New Question

a car is running at 50 mph when the driver starts to step at the breaks. if the car decelerates at the rate of 7 ms^2, how long does it take the car stop?

1 answer

Vo = 50mi/h * 1600m/mi * 1h/3600s. = 22.22 m/s.

V = Vo + a*t = 0 When stopped.
t = -Vo/a = -22.22/-7=3.17 s. To stop.

Similar Questions

A car starts from rest and travels for 5 seconds with a uniform acceleration of 2m/sec^2. The driver then applies the breaks
1. 1 answer
A driver take 0.20 second to apply the breaks (reaction time). If he isdriving car at a speed of 54 kmh–1 and the breaks cause
1. 1 answer
A car starts from rest and travels for 4.5 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes,
1. 1 answer
A car starts from rest and travels for 5.9 s with a uniform acceleration of +1.2 m/s2. The driver then applies the brakes,
1. 1 answer

more similar questions