Question

When the brakes of a certain car are applied, a deceleration of 6.0 m/s is produced. How much time will it take to bring the car to a halt from an initial speed of 110 km/hr?

Answer 1

Use the formula:


`V=V_o+at\\ \\ 15.27=30.55-6t\\ \\ 6t=30.55-15.27\\ \\ 6t=15.28\\ \\ t=(15.28)/(6)=2.54 \ s`