Question

Diffrece between speed and velocity

Answer 1

Answer:

The speed is the change in distance of an object with respect to time and velocity  of an object is the rate of change of displacement with time

Explanation:

• The speed is the change in distance of an object with respect to time
• speed can be completely defined by its magnitude only because it is a scalar

• unit of speed is meter per second $m/s$
• speed of a moving body is never zero and always positive

                        speed =distance /time

• The velocity of an object is the rate of change of displacement vector with respect to time that is the speed in a specified direction is velocity
• To define velocity we not only need its magnitude but the direction is also needed because it is a vector quantity
• unit of velocity is the same as that of speed that is $m/s$
• velocity can be negative, zero, and positive

                          velocity=displacement /time