A body can have zero average velocity but not zero average speed. Justify.
A body can have zero average velocity but not zero average speed. Justify.
Average velocity is defined as the ratio of the total displacement to the total time taken, whereas average speed is defined as the ratio of total distance travelled to the time taken. Since displacement can be zero, therefore, we can have zero average velocity.
Similar Questions
Write true or false for the following statements
The motion in animals is called locomotion. Mechanics deals with the motion of non$-$living objects.
Write true or false for the following statements
The motion in animals is called locomotion. Mechanics deals with the motion of non$-$living objects.
Write true or false for the following statements
Acceleration is defined as the rate of change of velocity.
Write true or false for the following statements
Acceleration is defined as the rate of change of velocity.
Why does (second)$^{2}$ occur in the unit of acceleration ?
Why does (second)$^{2}$ occur in the unit of acceleration ?
If the acceleration of the particle is constant in magnitude but not in direction, what type of path does the particle follow ?
If the acceleration of the particle is constant in magnitude but not in direction, what type of path does the particle follow ?
A scooter starts from rest moves in a straight line with a constant acceleration and covers a distance of $64 \,m$ in $4 \,s$
$(i)$ Calculate its acceleration and its final velocity.
$(ii)$ At what time the scooter had covered half the total distance ?
A scooter starts from rest moves in a straight line with a constant acceleration and covers a distance of $64 \,m$ in $4 \,s$
$(i)$ Calculate its acceleration and its final velocity.
$(ii)$ At what time the scooter had covered half the total distance ?