JAMB - Physics (1994 - No. 4)
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
説明
Retardation = \(\frac{u - v}{t}\)
= \(\frac{15 -0}{20}\)
= 0.75ms-1
= \(\frac{15 -0}{20}\)
= 0.75ms-1