Question

A car traveling at a speed of 36.1 m/s encounters an emergency and comes to a

complete stop. How much time will it take for the car to stop if it decelerates at -8.0 m/s

Answer 1

Answer: i do this by repeating subtraction 36.1-8 1sec -8 2sec 20-8 3sec 12-8 4sec remainder 4-8 is half second

So 4.5seconds

There is nicer way when you can write formulas

Explanation: