Question

2. The retardation of the body is
1) 20ms-2 2) 30 ms-2
3) 2 ms-2 4) 3 ms-2

Answer 1

Answer:

Acceleration takes place when the velocity of a body changes. So when the velocity of a body increase, the acceleration is said to be positive and when the velocity of a body decrease, the acceleration is said to be negative(Retardation). A body is said to be retarded if its velocity is decreasing.