Question

acceletion and retardation five points​

Answer 1

Answer:

Acceleration of a body is defined as the rate of change of its velocity with time.Velocity of the body increases with time.

i.e Acceleration = Change in velocity / Time taken for change

Retardation means negative acceleration. If the velocity of a body decreases,the acceleration is negative.

Example: The acceleration of a body is -5 m/s​2. then we can say that the retardation of the body is 5 m/s​2.

Explanation:

Answer 2

Answer:

Deceleration, also known as retardation or negative acceleration, is the acceleration that acts in the opposite direction of motion and is responsible for lowering a body's velocity.

Acceleration :

• The rate of change of an object's velocity with respect to time is defined as acceleration.
• The increase in velocity of an object per unit of time is referred to as acceleration.
• Acceleration can be positive (+), zero (0), or negative (-).
• For example, suppose an object was moving north at 10 meters per second. The object accelerates and is now moving north at a rate of 15 meters per second. The object has gained speed

Retardation :

• The act or result of delaying; the extent to which something is retarded or delayed; that which retards or delays.
• Retardation is the inverse of acceleration and is defined as a decrease in velocity per unit of time.
• Retardation is the inverse of acceleration. Negative acceleration is also referred to as retardation or deceleration
• For example, when the brake is applied, the vehicle's velocity decreases.

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