Question

Retardation is also known as *
a) Acceleration
b) Negative acceleration
c) uniform acceleration
d) Zero acceleration​

Answer 1

b) Negative acceleration

b) Negative accelerationCorrect option is (c) retardation is also called as negative acceleration or deceleration.

Meaning -: Retardation is nothing but a negative acceleration. The velocity of the body may either increase or decrease. The change in velocity is known as acceleration. If the velocity of the body increases, acceleration is said to be positive. Similarly, if the velocity decreases, the acceleration is said to be negative.

Example-: The train reaching the station slows down, in this case, we can say that the train is retarding. Retardation is acceleration with a negative sign. Or the negative value of acceleration shows that the velocity of a body is decreasing.

Hope you understood...

Answer 2

Answer:

d) Zero acceleration is the correct option.

Explanation:

When an object is at rest or in uniform motion, the velocity of the object remains the same. The change in velocity of the object is zero. Hence, the object at rest or in uniform motion has zero acceleration. ... Therefore, retardation means negative acceleration.

hope it helps you mate keep smiling and stay safe.