Question

Explain the topic of velocity

Answer 1

Answer:

V = x/t

where:

x = distance [m]

t = time [s]

V = velocity [m/s]

Explanation:

Speed is defined as the distance travelled by a body in a given time interval. The velocity or speed is a vector, that is, it has magnitude and direction.

By virtue of its vector character, the direction of the displacement and the module, which is called speed, must be considered to define the velocity.

Average speed

The average speed is defined as the change of position over a given time interval. It is calculated by dividing the displacement vector (Δx) between the time interval (Δt) used.

Instant speed

Instantaneous velocity is a vector tangent to the trajectory, corresponding to the derivative of the vector position relative to time.

It allows to know the speed of a mobile that moves on a trajectory when the interval of time is infinitely small, being then the space traveled also very small, representing a point of the trajectory. Instant velocity is always tangent to the trajectory.