Relation between initial velocity, final velocity and acceleration

Let us derive the relation between the initial velocity, final velocity and acceleration.

Suppose a body has an initial velocity u and is moving with uniform acceleration a.

Let the final velocity of the body after time t = v.

a = dv/dt

Or                                                              dv = adt                                               …(i) Continue reading “Relation between initial velocity, final velocity and acceleration”

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Acceleration, average Acceleration, uniform Acceleration, variable Acceleration, instantaneous Acceleration

Acceleration: The state of change of velocity of a body with time is known as its acceleration.

If the velocity of a body increases with time, then its acceleration is positive. On the other hand, if the velocity of a body decreases with time, then its acceleration is negative. Negative acceleration is also called retardation or deceleration. Acceleration is a vector quantity.

Units of acceleration. The units of acceleration are: Continue reading “Acceleration, average Acceleration, uniform Acceleration, variable Acceleration, instantaneous Acceleration”

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Velocity, average velocity, uniform velocity, variable velocity, instantaneous velocity

Let us discuss the definitions of velocity, uniform velocity, average velocity, variable velocity and instantaneous velocity

Velocity: The time rate of change of position of a body in a particular direction is known as its velocity.

Or

The time rate of change of displacement of a body is known as its velocity.

i.e.                                            Velocity = displacement/time Continue reading “Velocity, average velocity, uniform velocity, variable velocity, instantaneous velocity”

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