Physics · MOTION IN A STRAIGHT LINE

A car moving along a straight highway with a speed of \( 126\text{ km h}^{-1} \) is brought to a stop within a distance of \( 200\text{ m} \). Assuming constant deceleration, the magnitude of retardation and the time taken by the car to stop are respectively:

1. A
   \( 2.50\text{ m s}^{-2} \) and \( 14.0\text{ s} \)
2. B
   \( 1.75\text{ m s}^{-2} \) and \( 20.0\text{ s} \)
3. C
   \( 4.20\text{ m s}^{-2} \) and \( 8.33\text{ s} \)
4. D
   \( 3.06\text{ m s}^{-2} \) and \( 11.4\text{ s} \)