Write true or false for the following statements
A quantity which can be completely specified by magnitude as well as direction is called a scalar quantity.
Ali while driving to school computes the average speed for his trip to be $20\, km h^{-1}$. On his return trip along the same route there is less traffic and the average speed is $30\, km h^{-1} .$ What is the average speed for Ali's trip ?
A cyclist goes once around a circular track of diameter $105$ metre in $5$ minutes. Calculate his speed.
A person travelling in a bus noted the timings and the corresponding distances as indicated on the km stones. (a) Name this type of table $(b)$ What conclusion do you draw from this data ?
Time | Distance |
$8.00\, am$ | $10\, km$ |
$8.15 \,am$ | $20 \,km$ |
$8.30\, am$ | $30\, km$ |
$8.45\, am$ | $40\, km$ |
$9.00\, am$ | $50\, km$ |
A person standing at $A$ goes to $B$ by following any of the paths $1,2$ or $3 .$ Which path we can measure to find the average velocity ?