Distinguish between terms speed and velocity.

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Speed is the rate of change of distance. It is a scalar quantity and is always positive.

Velocity is the rate of change of displacement. It is a vector quantity and can be positive, negative or zero.

Similar Questions

$(a)$ Differentiate between uniform linear and uniform circular motion.

$(b)$ Write any four examples of uniform circular motion.

$(c)$ Is uniform circular motion is accelerated motion ?

The distance$-$time graph of two trains are given below. The trains start simultaneously in the same direction.

$(i)$ How much ahead of $A$ is $B$ when the motion starts ?

$(ii)$ What is the speed of $B$ ?

$(iii)$ When and where $A$ will catch $B$ ?

$(iv)$ What is the difference between the speeds of $A$ and $B$ ?

$(v)$ Is the speed of either trains uniform or non uniform ? Justify your answer.

Write true or false for the following statements

The motion in animals is called locomotion. Mechanics deals with the motion of non$-$living objects.

Velocity$-$time graph for the motion of an object in a straight path is a straight line parallel to the time axis.

$(a)$ Identify the nature of motion of the body.

$(b)$ Find the acceleration of the body.

$(c)$ Draw the shape of distance-time graph for this type of motion.

What conclusion can you draw from the displacement$-$time graph of a body as shown below ?