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Account for the following
$(a)$ What is the shape of the path of a body when it is in uniform motion ?
$(b)$ Give one example of non$-$uniform motion.
$(c)$ Two cars $A$ and $B$ have their $x-t$ graph as shown in figure. Which has greater velocity ?
$(d)$ What is the quantity which is measured by the area occupied below the velocity$-$time graph ?
$(e)$ A body is moving with a velocity of $10\, m s ^{-1}$. If the motion is uniform, what will be the velocity after $10\, s$ ?
Solution
$(a)$ A straight line.
$(b)$ Bus moving on a hilly road.
$(c)$ More the slope of the $x -t$ graph, more is the velocity. The slope of $A$ is more than that of $B.$Therefore, velocity of $A$ is more.
$(d)$ Magnitude of the displacement of a body.
$(e)$ In uniform motion, there is no change in velocity, hence, velocity will remain $10 m s ^{-1}$ even after $10 s$
