Question

Define the following terms:
(i) uniform speed (ii) uniform acceleration (iii) retardation (iv) displacement

Answer 1

Answer:

Uniform Speed:

Speed is a measure of how fast an object is moving at a given instant of time. It is a scalar quantity. Its unit is m/s. For a body covering equal distances in equal time intervals, the speed is called uniform speed.

Uniform acceleration:

Uniform or constant acceleration is a type of motion in which the velocity of an object changes by an equal amount in every equal time period. A frequently cited example of uniform acceleration is that of an object in free fall in a uniform gravitational field.

Retardation:

Retardation means negative acceleration. ... 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.

Displacement:

Displacement is an object's change in position, only measuring from its starting position to the final position. ... If your starting and ending position are the same, like your circular 5K route, then your displacement is 0. In physics, displacement is represented by Δs.

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