Question

Define velocity and speed Define a radian.

​

Answer 1

Answer:

Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second .

Answer 2

Explanation:

$\huge\bold\green {define \ velocity:-}$

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.

$\huge\bold\red {define \ speed:-}$

the speed of an object is the magnitude of the change of its position; it is thus a scalar quantity.

$\huge\bold\pink {define \ radian:-}$

Radian describes the plane angle subtended by a circular arc, as the length of the arc divided by the radius of the arc.