A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds. Calculate the retardation.
-
0.75ms-1
- 1.33ms-2
- 5.00ms-2
- 7.50ms-2
The correct answer is: A
Explanation
Retardation = \(\frac{u - v}{t}\)= \(\frac{15 -0}{20}\)
= 0.75ms-1